A drip irrigation tape laying device

Abstract

The utility model discloses a drip irrigation tape laying device belongs to agricultural machinery technical field. The device includes drip irrigation tape roll loading mechanism, tape roll width disc brake mechanism and drip irrigation tape conveying guide mechanism. The loading mechanism passes through the support of turnover and locking mechanism, realized the quick switching of drip irrigation tape roll between low position loading and high position operation position, has reduced the labor intensity of loading roll significantly. The brake mechanism provides adjustable friction resistance moment through elastic element and adjusting mechanism, can effectively prevent the relaxation of drip irrigation tape caused by inertia, ensures the constant laying tension. The conveying guide mechanism adopts the elbow pipe body with the non - circular cross section inner hole channel, effectively limits the circumferential rotation of drip irrigation tape when passing, fundamentally avoids the outlet direction error caused by its overturning. The whole device structure is reasonable, and the operation is convenient, and the laying efficiency and quality of drip irrigation tape are effectively improved.

Description

Technical Field

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

[0002] In the process of agricultural modernization, water-saving irrigation technology has become a key support for improving agricultural production efficiency and ensuring sustainable agricultural development. Drip irrigation, as a highly efficient water-saving irrigation method, significantly reduces water waste by precisely delivering water and nutrients to the soil near the crop roots, while simultaneously improving crop yield and quality, and has therefore been widely used globally. With the promotion of large-scale agricultural planting models, increasingly higher demands are being placed on the efficiency, quality, and adaptability of drip irrigation systems. As the core component of drip irrigation systems, the level of automation and mechanization in the laying of drip irrigation tape has become a crucial factor affecting the effectiveness of drip irrigation technology.

[0003] Currently, drip irrigation tape laying devices on the market are mainly divided into two types: traction type and suspension type. Their working principle is mostly based on releasing the drip irrigation tape from a reel, and then using a laying mechanism to bury the tape in the soil or lay it on the surface. However, existing drip irrigation tape laying devices have many technical problems affecting operational efficiency and quality. First, the height of existing laying devices is fixed and cannot be adjusted. When installing drip irrigation tape, operators must lift it from the ground with both hands and hang it at a high installation position. As the diameter of the drip irrigation tape reel gradually increases, coupled with the aging of the rural labor force, this operation becomes extremely labor-intensive, making drip irrigation tape laying work very difficult. Second, existing drip irrigation laying devices do not have an automatic braking function. When the tractor is moving normally, the drip irrigation tape rotates synchronously with the reel and remains taut. However, when the tractor brakes and stops, the reel continues to rotate due to inertia, causing the drip irrigation tape to sag. When the tractor moves forward again, this sagned drip irrigation tape will be exposed on the ground, which is unacceptable. The installation standards are not standardized, so two people must be assigned to observe and intervene at all times, which significantly increases labor costs. Third, the pipe laying device can cause the drip irrigation tape to flip. Most existing pipes are circular in structure. Although they can meet the requirement of no burrs on the inner wall to avoid damage to the drip irrigation tape, and the one-piece bending and forming process is relatively simple, the drip irrigation tape is prone to flipping inside the circular pipe when the tractor reverses or turns around, causing the drip irrigation tape outlet to face downwards, which cannot meet the installation requirements. Fourth, the pipe laying device has insufficient wear resistance. Due to the different soil conditions in different regions, such as clay, sandy soil, and stony soil, the buried pipe part is easily worn out during long-term operation and needs to be replaced frequently, which increases the operating cost of the device. Utility Model Content

[0004] In view of the problems of high labor intensity in the rolling process, inertia causing the drip irrigation tape to loosen, and the drip irrigation tape being prone to circumferential flipping during the delivery process, this utility model provides a drip irrigation tape laying device.

[0005] This utility model is implemented as follows: a drip irrigation tape laying device includes a drip irrigation tape roll loading mechanism, a tape reel braking mechanism, and a drip irrigation tape conveying mechanism. The device is characterized in that: the drip irrigation tape roll loading mechanism includes a mounting base, a bracket, and a locking mechanism; the mounting base is used to fix the entire device to agricultural machinery; one end of the bracket is rotatably connected to the mounting base, allowing the bracket to rotate around the connection point as a center between a lowering position for loading the drip irrigation tape roll and a raised position for laying operations; the locking mechanism is disposed on the mounting base and used to lock the bracket in the raised position; the tape reel braking mechanism includes a rotating shaft, a braking device, and a braking component; a rotating shaft is rotatably mounted on the bracket; at least one tape reel is fixedly mounted on the rotating shaft, for... The device supports the drip irrigation tape roll; the braking device includes a braking component, an elastic element, and an adjusting mechanism. The braking component is disposed on one side of the disc or shaft and is used to generate a resistance torque through friction with a fixed part; the elastic element is used to provide a clamping force to the braking component; the adjusting mechanism is connected to the elastic element and is used to adjust the clamping force exerted by the elastic element on the braking component to adjust the braking force; the drip irrigation tape conveying mechanism includes a bent tube body, the bent tube body having 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 when it passes through the arc-shaped guide section.

[0006] In the above technical solution, preferably, the locking mechanism is a quick-connect positioning pin, and the front side of the bracket is provided with a guide triangle structure for guiding and initially positioning when the bracket flips from the lowered position to the raised position.

[0007] In the above technical solution, preferably, the elastic element is a compression spring, and the adjusting mechanism includes a handwheel. The handwheel is rotated to adjust the compression amount of the compression spring, thereby adjusting the clamping force.

[0008] In the above technical solution, preferably, the swing frame is mounted on the bracket via a swing shaft, the axis of the swing shaft is parallel to the outer end face of the friction disc fixed to the amplification disc, the braking component is fixed to the swing shaft, and the swing frame swings around the swing shaft.

[0009] In the above technical solution, preferably, the handwheel is threaded onto the adjusting screw, the axis of the adjusting screw is perpendicular to the end face of the friction disc, the upper end of the swing frame is provided with an elongated hole that passes through the adjusting screw, the compression spring is fitted onto the adjusting screw, and both ends press against the outer section of the friction disc and the handwheel respectively.

[0010] In the above technical solution, preferably, the non-circular cross-section is rectangular.

[0011] In the above technical solution, preferably, the bent pipe body is integrally bent from a single rectangular steel pipe.

[0012] In the above technical solution, preferably, a sturdy bow head is also included, which is detachably installed at the outlet end of the bent pipe body via a quick-release connection mechanism.

[0013] 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.

[0014] 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.

[0015] The drip irrigation tape laying device provided by this utility model, by integrating a drip irrigation tape roll loading mechanism, a roll disc braking mechanism, and a drip irrigation tape conveying mechanism, comprehensively improves the automation level, ease of operation, and reliability of drip irrigation tape laying. This device exhibits significant advantages in agricultural mechanization operations, with specific advantages and effects as follows: Firstly, the drip irrigation tape loading mechanism adopts a flip-up single-support design, combined with a quick-release locking mechanism and a guide triangle structure, which greatly reduces the labor intensity of operators. In traditional devices, installing heavy drip irrigation tape rolls requires lifting them to a high and fixed position. However, this mechanism allows the support to flip down to a lower position, making the loading height about waist level, allowing operators to easily complete the loading without strenuous lifting. After the support is raised, it is quickly locked by a quick-release positioning pin, and the guide triangle structure ensures accurate positioning, saving operation time. At the same time, the single-support structure saves lateral installation space and reduces manufacturing costs, making it particularly suitable for the needs of an aging rural workforce and large-scale agriculture.

[0016] Secondly, the integrated brake mechanism with a web-mounted disc effectively solves the problem of drip irrigation tape slack due to inertia during installation. This mechanism uses a friction disc to form a friction pair with the brake components and utilizes a compression spring to provide adjustable clamping force. The operator can steplessly adjust the braking force by turning a handwheel to adapt to different drip irrigation tape roll weights, tractor speeds, and ground slopes. This design avoids the slack caused by the drip irrigation tape roll continuing to rotate when the tractor brakes, ensuring the drip irrigation tape remains taut at all times. This reduces manual intervention during installation, lowers labor costs, and improves work continuity and installation quality.

[0017] Finally, the drip irrigation tape delivery mechanism fundamentally prevents the drip irrigation tape from turning over and wearing during installation through its non-circular cross-section curved pipe body and detachable sturdy bow design. The curved pipe body is made of a single rectangular steel pipe bent into shape, and its inner channel restricts the circumferential rotation of the drip irrigation tape, ensuring that the outlet always faces upwards; the tapered design at the outlet end further enhances guiding stability. The sturdy bow is welded from wear-resistant steel plates and installed through a quick-release connection mechanism, effectively resisting wear under harsh soil conditions, and can be quickly replaced after wear, extending the service life of the device. In addition, the reinforcing rib structure of the sturdy bow also plays a role in breaking soil, reducing drag, and resisting impact, improving the uniformity of laying depth and the stability of the equipment in complex terrain.

[0018] In summary, through the collaborative innovation of its various mechanisms, this drip irrigation tape laying device achieves multiple benefits, including labor-saving loading, adaptive braking, anti-tumble, and wear-resistant durability. It significantly improves laying efficiency and quality, reduces maintenance costs, and provides reliable technical support for the promotion of modern agricultural drip irrigation technology. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a left-side view of the drip irrigation tape roll loading mechanism in this utility model; Figure 3 This is a right-side view of the drip irrigation tape roll loading mechanism in this utility model; Figure 4 This is a front side view of the drip irrigation tape roll loading mechanism in this utility model; Figure 5 yes Figure 4 Enlarged view of part A; Figure 6 This is a schematic diagram of the drip irrigation tape delivery mechanism in this utility model; Figure 7 This is a front view schematic diagram of the drip irrigation tape delivery mechanism in this utility model; Figure 8 This is a structural schematic diagram of the central bow of this utility model. Detailed Implementation

[0020] 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.

[0021] To overcome the shortcomings of existing technologies, this utility model provides a drip irrigation tape laying device. 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 A drip irrigation tape laying device includes a drip irrigation tape roll loading mechanism 1, a tape roll disc braking mechanism 2, and a drip irrigation tape conveying mechanism 3.

[0022] The drip irrigation tape roll loading mechanism includes a mounting base 1-1, a bracket 1-2, a disc 1-3, and a locking mechanism.

[0023] The mounting base is made of two symmetrical thick steel plates with multiple bolt holes for securing the entire device to the frame of a tractor or a dedicated drip irrigation laying machine using high-strength bolts.

[0024] The support frame is the core load-bearing and moving component of this device. It is made of a single high-strength square steel tube, forming a single-frame structure. Compared to the traditional double-frame design, this design greatly saves lateral installation space and reduces manufacturing costs. One end of the support frame is rotatably connected to the mounting base via a heavy-duty pivot. This pivot forms the rotation center of the support frame, allowing it to rotate more than 90 degrees between a lowered position (where the angle between the support frame and the ground is small) and a raised position (where the support frame is almost perpendicular to the ground), acting like a lever.

[0025] The locking mechanism is used to reliably fix the bracket in the raised position to withstand the weight of the drip irrigation tape roll 1-4 and vibrations during operation. In this embodiment, the locking mechanism uses a quick-connect positioning pin 1-5. Specifically, a pin sleeve is fixed on the mounting base, located above the mounting base. A front limiting plate is fixed at the corresponding position of the bracket, and the quick-connect positioning pin forms a rear limiting component. The front limiting plate and the quick-connect positioning pin can limit the position of the bracket in the raised position. Alternatively, a pin hole can be machined on the bracket. When the operator flips the bracket from the lowered position to the predetermined raised position, the pin hole aligns with the pin sleeve, and the quick-connect positioning pin can be inserted to achieve mechanical locking. The end of the quick-connect positioning pin is equipped with a safety chain to prevent loss, and its handle is large enough for the operator to grip and insert while wearing gloves.

[0026] To facilitate flipping the bracket to the precise locking position, a guide triangle structure is welded to the front side of the bracket near the mounting base (i.e., the side that leads when flipping upwards). When the bracket flips upwards, this guide triangle structure contacts the pin sleeve or the relevant part of the mounting base first. Through the guiding action of the inclined plane, it automatically fine-tunes the position of the bracket, so that the pin hole on the bracket is quickly aligned with the pin sleeve on the mounting base, simplifying the operation and saving working time.

[0027] The web plate is rotatably mounted at the other end of the bracket (i.e., the free end away from the mounting base) via a bearing, and is used to support the central roll of the drip irrigation tape. There are two web plates, arranged opposite each other to clamp the drip irrigation tape roll.

[0028] The working process of this embodiment is as follows: Loading the drip irrigation tape roll: The operator first pulls upwards to release the lock by extending the quick-release locating pin. Then, holding the free end of the support, the operator flips it downwards until it reaches its lowest position. At this point, the width of the reel is lowered to about waist level. The operator can then easily lift the heavy drip irrigation tape roll to a lower height and place it on the reel, greatly reducing labor intensity.

[0029] Raise to working position: After loading, the operator pushes the free end of the support upwards, causing it to rotate around the hinge axis. With the aid of the guide triangle structure, the support easily and accurately reaches the raised position, with the pin holes aligned. Insert the quick-release positioning pin to lock the support.

[0030] Laying operation: The tractor pulls the equipment forward, and the drip irrigation tape is pulled out.

[0031] Replacing the drip irrigation tape roll: Repeat steps 1 and 2 to quickly complete the replacement.

[0032] In summary, this embodiment, through its reversible single-support structure, quick-connect locking mechanism, and guide design, perfectly solves the core defects of existing technologies, such as laborious loading, large space occupation, and inconvenient operation.

[0033] Please see Figure 4 and Figure 5 The belt disc brake mechanism is the core working component installed at the end of the support of the drip irrigation tape roll on the drip irrigation tape laying machine. It is used to support the drip irrigation tape roll and control its tension release during the laying process.

[0034] The spoke assembly mainly includes a rotating shaft 2-1, a spoke assembly, and a braking device integrated thereon.

[0035] The rotating shaft is rotatably supported at the end of the bracket via a bearing housing. This rotating shaft is the core of power transmission; its rotation drives the entire disc assembly to rotate.

[0036] The web assembly includes two webs 2-2 arranged opposite each other. The two webs are fixedly mounted on the rotating shaft by key connection or interference fit, and the distance between them is adjustable or fixed, used to clamp and support the central cylindrical drip irrigation tape roll 1-4 from both sides.

[0037] The braking device is the core improvement of this embodiment, and it is integrated on one side of the disc assembly. The braking device mainly includes braking components 2-4, elastic elements, and an adjustment mechanism.

[0038] The braking component is made of a wear-resistant friction material (such as semi-metallic, powder metallurgy, or asbestos-based material) and is mounted on a bracket via a spline or similar guide structure. Therefore, the braking component itself does not rotate, but it has the freedom to move towards the spoke disc, forming a friction pair with the friction disc 2-9 or the end face of the spoke disc, which rotates with the shaft. In this embodiment, specifically, a swing arm 2-8 is mounted on the bracket via a swing shaft 2-7. The axis of the swing shaft is parallel to the outer end face of the friction disc. The braking component is fixed to the swing shaft, and the swing arm, by swinging around the swing shaft, allows the braking component to be pressed against the outer end face of the friction disc, forming a friction pair.

[0039] The elastic element provides a constant positive pressure that presses the brake components against the friction disc. In this embodiment, the elastic element is specifically one or more compression springs 2-5. The adjusting mechanism adjusts the preload of the compression springs to precisely control the frictional torque (i.e., braking force) generated by the brake components. The adjusting mechanism mainly includes an adjusting screw and a handwheel 2-6 threaded onto the adjusting screw. The axis of the adjusting screw is perpendicular to the end face of the friction disc. The upper end of the swing frame has an elongated hole passing through the adjusting screw. The compression spring is fitted onto the adjusting screw, with its two ends pressing against the outer cross-section of the friction disc and the handwheel, respectively. Turning the handwheel clockwise increases the spring compression, causing the upper end of the swing frame to be pressed against the friction disc, thus increasing the braking force. Conversely, turning it counterclockwise decreases the spring compression, reducing the pressure on the swing frame and weakening the braking force. This allows the operator to steplessly adjust the brake tightness according to the diameter (weight) of the drip irrigation tape roll, the tractor speed, and the ground slope.

[0040] Please see Figure 1 , Figure 6 , Figure 7 and Figure 8 The drip irrigation tape delivery mechanism is a key component of the drip irrigation tape laying device.

[0041] The core of the bent pipe structure described in this invention consists of a bent pipe body 3-1 and a detachable vertical head 3-2. The bent pipe body 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 channels, effectively preventing damage to the drip irrigation tape from burrs. The bent pipe body 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, which has a non-circular cross-sectional shape; 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 rectangular drip irrigation tape 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.

[0042] Furthermore, the lateral width of the outlet end of the curved tube body is designed to be smaller than that of its inlet end. This tapered channel design provides better guidance and tightening for the drip irrigation tape, further enhancing its stability as it passes through the curved tube and preventing it from swaying or overturning at the outlet.

[0043] 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 includes a vertical anchor connected to the outlet end of the bend body 1. This vertical anchor is detachably mounted to the bend body via a quick-release connection mechanism for rapid replacement after wear. The vertical anchor comprises 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, 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; simultaneously, opening through holes on the outer wall of the bend body outlet end corresponding to these pin holes; and reliably connecting the two by simultaneously inserting an expansion pin 3-3 through both the through hole on the bend body and the pin hole on the vertical anchor. 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.

[0044] The rigid head 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 smoothly connects to the outlet end of the bent pipe body. 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 groove is provided on the outer side of the inlet end of the rigid head. This groove is inserted into a pair of connecting... Between ear plates 3 and 4, a single expansion pin is used to horizontally pass through the ear plate and the corresponding pin hole on the slot to achieve a quick and detachable connection; the entire connection point is located outside the drip irrigation tape channel, without affecting the smooth passage of the drip irrigation tape; its working principle is: when the device travels in stony soil, the wear-resistant steel plate at the front end of the vertical head 2 directly contacts the soil and stones, using its high thickness and wear-resistant material to withstand wear and protect the internal channel and the bend body 1 from damage, while the modular quick-release connection method allows for quick replacement after wear, greatly improving the durability and maintenance efficiency of the equipment.

[0045] During operation, after the drip tape is released from the spreader, it first enters the inlet end of the bend, and then changes direction 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 through the guide head. This invention, through the above structural design, effectively solves the technical problem of drip tape flipping, while significantly improving the wear resistance of the bend end under harsh soil conditions and the convenience of equipment maintenance.

[0046] 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.

[0047] 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 drip irrigation tape laying device, comprising a drip irrigation tape roll loading mechanism, a tape roll disc braking mechanism, and a drip irrigation tape conveying mechanism, characterized in that: The drip irrigation tape roll loading mechanism includes a mounting base, a bracket, and a locking mechanism; the mounting base is used to fix the entire device to agricultural machinery; one end of the bracket is rotatably connected to the mounting base, so that the bracket can rotate about the connection point as a rotation center between a lower position for loading the drip irrigation tape roll and a raised position for laying operations; the locking mechanism is provided on the mounting base and is used to lock the bracket in the raised position; The web disc braking mechanism includes a rotating shaft, a braking device, and a braking component; a rotating shaft is rotatably mounted on the bracket; at least one web disc is fixedly mounted on the rotating shaft to support the drip irrigation tape roll; the braking device includes a braking component, an elastic element, and an adjusting mechanism; the braking component is disposed on one side of the web disc or rotating shaft and is used to generate a resistance torque through friction with a fixed part; the elastic element is used to provide a clamping force to the braking component; the adjusting mechanism is connected to the elastic element and is used to adjust the clamping force exerted by the elastic element on the braking component to adjust the braking force. The drip irrigation tape delivery mechanism includes a bent tube 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, which is non-circular in shape, to restrict the circumferential rotation of the drip irrigation tape when it passes through the arc-shaped guide section.

2. The drip irrigation tape laying device according to claim 1, characterized in that: The locking mechanism is a quick-connect positioning pin, and the front side of the bracket is provided with a guide triangle structure, which is used to guide and initially position the bracket when it flips from the lowered position to the raised position.

3. The drip irrigation tape laying device according to claim 1, characterized in that: The elastic element is a compression spring, and the adjustment mechanism includes a handwheel. The handwheel is rotated to adjust the compression of the compression spring, thereby adjusting the clamping force.

4. The drip irrigation tape laying device according to claim 3, characterized in that: The bracket is mounted on a swing shaft, the axis of which is parallel to the outer end face of the friction disc fixed to the amplification disc. The braking component is fixed to the swing shaft, and the swing frame swings around the swing shaft.

5. The drip irrigation tape laying device according to claim 4, characterized in that: The handwheel is threaded onto the adjusting screw, the axis of which is perpendicular to the end face of the friction disc. The upper end of the swing frame has an elongated hole that passes through the adjusting screw. The compression spring is fitted onto the adjusting screw, and its two ends press against the outer cross-section of the friction disc and the handwheel, respectively.

6. The drip irrigation tape laying device according to claim 1, characterized in that: The non-circular cross-section is rectangular.

7. The drip irrigation tape laying device according to claim 6, characterized in that: The bent pipe body is formed by bending a single rectangular steel pipe.

8. The drip irrigation tape laying device according to claim 1, 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.

9. The drip irrigation tape laying device according to claim 8, 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.

10. The drip irrigation tape laying device according to claim 9, 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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