Uniform spraying and fertilizing device for crops

Abstract

The invention discloses a uniform spraying and fertilizing device for crops, and belongs to the technical field of agricultural planting. An adjusting mechanism comprises a supporting frame and a moving frame arranged on the supporting frame in a sliding manner; the spraying mechanism comprises a fixed spraying pipe arranged on the moving frame and a folding pipe arranged on the fixed spraying pipe in a swinging mode. The fixed spraying pipe comprises a plurality of branch pipes, and the folding pipes are movably installed at the ends of the branch pipes. A plurality of through notches are formed in the folding pipe; a rotary spray pipe is rotationally mounted on the outer wall of the folding pipe; the branch pipe is provided with a first nozzle, and the rotary spray pipe is provided with a plurality of second nozzles corresponding to the notches. The first nozzle and the second nozzle are installed on the branch pipe and the rotary spraying pipe respectively, the first nozzle focuses on whole plant covering and top leaf surfaces, and the second nozzle focuses on targeted precise spraying such as the side surfaces and the back of the leaf surfaces. When the surface back and the side face are sprayed, the folding pipe swings by 90 degrees, the rotary spraying pipe rotates, and the second nozzle accurately sprays through the notch.

Description

Technical Field

[0001] This invention relates to the field of agricultural planting technology, specifically to a device for uniformly spraying fertilizer onto crops. Background Technology

[0002] Irrigation and fertilization, as the lifeline of agricultural production, are indeed the core link connecting production efficiency, resource conservation, and ecological protection through their scientific techniques. Traditional flood irrigation and indiscriminate fertilization not only waste water resources and result in insufficient fertilizer utilization, but may also lead to ecological problems such as soil compaction and groundwater pollution. During fertilization, the application methods for different types of fertilizers vary greatly. Micronutrient fertilizers, such as ferrous sulfate and zinc sulfate, should be preferentially sprayed onto the underside of leaves. These fertilizers need to be quickly absorbed by crops and require small amounts; the stomata and thin cuticle on the underside of leaves can improve absorption efficiency and reduce waste.

[0003] Water-soluble fertilizers containing macronutrients, such as urea solution, potassium dihydrogen phosphate, and water-soluble compound fertilizers, are mostly macronutrient, slow-release, or water-soluble compound fertilizers. The goal of fertilization is to quickly cover the entire plant. Spraying directly on the plant does not affect the absorption effect and is more convenient to apply.

[0004] Chinese patent application CN119278787A discloses an intelligent root-layer drip irrigation fertilization system, including a delivery pipe and a cultivation box. The cultivation box is equipped with a cultivation chamber and an operating chamber. The cultivation box is fitted with an inverted L-shaped mounting frame, which is fitted with a cylinder. The cylinder is fitted with a piston rod, which is fitted with a traction block. The traction block is fitted with a connecting rod, which is fitted with a fixing block. The fixing block is fitted with a guide rod, which is fitted with a roller, a guide block, and a telescopic spring. The guide block is fitted with a horizontal block, which is fitted with an assembly block, and the assembly block is fitted with a spray head. This intelligent root-layer drip irrigation fertilization system solves the problem that in existing spraying systems, some liquid fertilizer is sprayed onto the plant leaves during spraying, which easily evaporates with heat. Furthermore, some plants with excessively long roots cannot absorb the liquid fertilizer, thus affecting the cultivation effect.

[0005] However, the fertilization systems disclosed above generally have limited effectiveness and methods, and cannot adaptively adjust the spraying location according to actual needs and fertilizer types. Summary of the Invention

[0006] The purpose of this invention is to provide a uniform spraying and fertilization device for crops, in order to solve the problems that existing fertilization systems generally have poor treatment effects and methods, and cannot adaptively adjust the spraying position according to actual needs and fertilizer types.

[0007] To achieve the above objectives, the technical solution of the present invention is: a crop uniform spraying and fertilization device, comprising: an adjustment mechanism, including a support frame and a moving frame slidably disposed on the support frame; The spraying mechanism includes a fixed spray pipe mounted on the moving frame and a folding pipe that is oscillatingly mounted on the fixed spray pipe; The fixed spray pipe includes multiple branch pipes, and the folded pipe is movably installed at the end of the branch pipe; the folded pipe has multiple through-holes; a rotating spray pipe is rotatably installed on the outer wall of the folded pipe; a first nozzle is installed on the branch pipe, and multiple second nozzles corresponding to the multiple through-holes are installed on the rotating spray pipe.

[0008] As a further embodiment of the present invention: a first swing seat is provided on the branch pipe, a second swing seat is provided on the folded pipe, and the folded pipe is movably mounted on the first swing seat via the second swing seat; a second motor is provided on the branch pipe, and the output end of the second motor is connected to the second swing seat.

[0009] As a further embodiment of the present invention: a flexible hose is provided between the branch pipe and the corresponding folded pipe; a positioning groove is provided on the radial inner wall of the branch pipe; a limiting groove is provided on the radial inner wall of the folded pipe facing the branch pipe; the flexible hose includes a positioning part and a sliding part; the positioning part is provided with a positioning ring, which is located in the positioning groove; a slider is provided on the sliding part, and the slider is slidably disposed in the limiting groove.

[0010] As a further aspect of the present invention: the folded tube is provided with a connecting arm inside, the connecting arm being used to connect the inner walls on both sides of the notch in the folded tube.

[0011] As a further embodiment of the present invention: a drive chamber is provided on the axial outer wall of the folded tube away from the branch tube, a third motor is installed in the drive chamber, a gear is installed at the output end of the third motor, and a gear ring is installed on the inner wall of the rotating nozzle, the gear meshing with the gear ring.

[0012] As a further embodiment of the present invention: a rotating groove is provided on the outer wall of the folded tube, and a track is provided on the inner wall of the rotating nozzle; the track is rotatably disposed in the rotating groove.

[0013] As a further embodiment of the present invention: the support frame is provided with a sliding groove, the moving frame is provided with a sliding seat, and the moving frame is slidably mounted on the sliding groove via the sliding seat.

[0014] As a further embodiment of the present invention: a through-hole limiting cavity is provided on the motion frame, and a motion seat is slidably disposed on the motion frame, the motion seat being slidably disposed within the limiting cavity; a first motor is also installed on the motion frame, the output end of the first motor is provided with a threaded rod, a threaded hole is provided on the motion seat, and the threaded rod is threadedly connected to the threaded hole.

[0015] As a further embodiment of the present invention: a suspension is provided on the motion frame, and a mounting base is provided on the suspension; a collection cylinder is installed on the mounting base, and a conveying pipe is installed on the collection cylinder, and the conveying pipe is connected to the fixed spray pipe.

[0016] As a further embodiment of the present invention: the motion seat has a insertion cavity, and the fixed spray pipe is detachably installed in the insertion cavity; the adjustment mechanism also includes a control panel.

[0017] Compared with the prior art, the present invention has the following beneficial effects: In this invention, the first nozzle and the second nozzle are respectively mounted on the branch pipe and the rotating spray pipe. The first nozzle focuses on full plant coverage and the top leaf surface, while the second nozzle focuses on targeted and precise spraying, such as on the side and back of the leaf surface. When spraying the front of the leaf / the entire plant, the folded pipe remains parallel to the branch pipe, the first nozzle operates, the rotating spray pipe does not rotate, and the second nozzle is vertically downward. When spraying the back and side of the leaf surface, the folded pipe swings 90 degrees, the rotating spray pipe rotates, and the second nozzle sprays precisely through the notch. Attached Figure Description

[0018] The present invention will be further explained below with reference to the accompanying drawings and embodiments: Figure 1 This is the three-dimensional structure of the present invention. Figure 1 ; Figure 2 This is the three-dimensional structure of the present invention. Figure 2 ; Figure 3 This is the three-dimensional structure of the motion frame in this invention. Figure 1 ; Figure 4 This is the three-dimensional structure of the motion frame in this invention. Figure 2 ; Figure 5 This is a three-dimensional structural diagram of the motion seat in this invention; Figure 6 This is a three-dimensional structural diagram of the storage cylinder in this invention; Figure 7 This is the three-dimensional structure of the spraying mechanism in this invention. Figure 1 ; Figure 8 This is the three-dimensional structure of the spraying mechanism in this invention. Figure 2 ; Figure 9 This is a three-dimensional structural diagram of the folded tube in this invention; Figure 10 This is a cross-sectional view of the folded tube in this invention; Figure 11 This is a three-dimensional structural diagram of the hose in this invention; Figure 12 This is a cross-sectional view of the rotating nozzle in this invention; Figure 13 This is a partial three-dimensional structural diagram of the folded tube in this invention.

[0019] Explanation of reference numerals in the attached figures: 1. Adjustment mechanism; 101. Support frame; 102. Slide groove; 103. Moving frame; 104. Slide seat; 105. Limiting cavity; 106. First motor; 107. Threaded rod; 108. Suspension; 109. Mounting base; 110. Moving seat; 111. Threaded hole; 112. Insertion cavity; 2. Spraying mechanism; 201. Fixed spray pipe; 202. Branch pipe; 203. Storage cylinder; 204. Conveying pipe; 205. First nozzle; 206. Folded pipe; 207. First swing seat; 208. Second swing seat; 209. Second motor; 210. Positioning groove; 211. Limiting groove; 212. Hose; 213. Positioning part; 214. Positioning ring; 215. Sliding part; 216. Slider; 217. Notch; 218. Connecting arm; 219. Drive chamber; 220. Rotating groove; 221. Rotating spray pipe; 222. Track; 223. Second nozzle; 224. Gear ring; 225. Third motor; 226. Gear. Detailed Implementation

[0020] The following will be combined with the appendix Figures 1 to 13 The technical solutions of the present invention have been clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0022] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0023] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0024] This invention provides an improved crop uniform spraying and fertilization device, such as... Figures 1-13 As shown, it includes an adjustment mechanism 1, a support frame 101, and a motion frame 103 slidably disposed on the support frame 101; The spraying mechanism 2 includes a fixed spray pipe 201 mounted on the motion frame 103 and a folded pipe 206 oscillating on the fixed spray pipe 201. The fixed spray pipe 201 includes multiple branch pipes 202, and a folded pipe 206 is movably installed at the end of the branch pipe 202. Multiple through notches 217 are provided on the folded pipe 206. A rotating spray pipe 221 is rotatably installed on the outer wall of the folded pipe 206. A first nozzle 205 is installed on the branch pipe 202, and multiple second nozzles 223 corresponding to the multiple notches 217 are installed on the rotating spray pipe 221.

[0025] In this embodiment: the adjustment mechanism 1 enables multi-dimensional precise adjustment of the spraying position. As the positioning basis of the entire device, the adjustment mechanism 1 is responsible for driving the spraying mechanism 2 to achieve lateral width adjustment, adapting to crops with different row and plant spacings. The support frame 101 is the overall skeleton of the device, providing stable support. A sliding groove 102 is provided on it to provide a track for the sliding frame 103. The sliding frame 103 is slidably mounted on the sliding groove 102 via a sliding seat 104, driving the spraying mechanism 2 to move longitudinally. The sliding seat 110 is slidably mounted within the limiting cavity 105 of the sliding frame 103, enabling millimeter-level fine-tuning to precisely correct the lateral distance between the nozzle and the crop, adapting to differences in plant spacing. The storage cylinder 203 moves synchronously with the spraying mechanism 2 to prevent the fertilizer supply pipe from tangling.

[0026] The first nozzle 205 and the second nozzle 223 are respectively installed on the branch pipe 202 and the rotating spray pipe 221. The first nozzle 205 focuses on full plant coverage and the top leaf surface, while the second nozzle 223 focuses on targeted and precise spraying, such as the side and back of the leaf surface.

[0027] When spraying the front of the leaves / the entire plant, the folded tube 206 remains parallel to the branch tube 202, the first nozzle 223 operates, the rotating nozzle 221 does not rotate, and the second nozzle 223 is vertically downward. When spraying the back and sides of the leaves, the folded tube 206 swings 90 degrees, the rotating nozzle 221 rotates, and the second nozzle 223 sprays precisely through the notch.

[0028] See appendix Figure 7 - Appendix Figure 9 A first swing seat 207 is provided on the branch pipe 202, and a second swing seat 208 is provided on the folded pipe 206. The folded pipe 206 is movably mounted on the first swing seat 207 through the second swing seat 208. A second motor 209 is provided on the branch pipe 202, and the output end of the second motor 209 is connected to the second swing seat 208.

[0029] In this embodiment: the first swing seat 207 is a fixed base on the branch pipe 202, used to connect the folded pipe 206, providing a fulcrum for swinging and ensuring stability during swinging. The second swing seat 208 is a movable connecting end on the folded pipe 206, cooperating with the first swing seat 207 via a rotating shaft, and is the actuating end of the folded pipe 206 swinging. The second motor 209 is a power source on the branch pipe 202, directly driving the second swing seat 208 to rotate via an output shaft, thereby causing the folded pipe 206 to swing around the first swing seat 207.

[0030] In this embodiment, motor drive, compared to manual adjustment, enables stepless speed regulation and angle positioning. For example, it can precisely control the folding tube 206 to swing to 30°, 45°, 60°, etc., avoiding errors from manual adjustment. The swing angle can be set via a program, such as swinging it to 90° downwards when spraying the back of the leaf and to 90° horizontally when spraying the top surface, thus achieving automatic matching of fertilizer type and spraying angle.

[0031] In this embodiment: For dwarf crops, such as vegetables and wheat, the folded pipe 206 can be tilted upwards to be parallel to the branch pipe 202, and the first nozzle 205 and the second nozzle 223 together achieve full plant coverage. No manual adjustment of the angle is required; it can be remotely controlled via a remote control or intelligent system, making it particularly suitable for large-scale field operations. The swing seat adopts a hinged structure, which, combined with the stable output of the motor, prevents the folded pipe 206 from shifting its angle due to vibration during operation, ensuring consistent spraying position.

[0032] In this embodiment: For macronutrient fertilizers, the motor is not started, the folded tube 206 remains parallel to the branch tube 202, and the first nozzle 205 and the second nozzle 223 quickly cover the top of the crop and the front of the leaves. For micronutrient fertilizers, the motor drives the folded tube 206 to swing downwards by 90 degrees, and the second nozzle 223 is aimed at the side of the leaves for precise spraying, improving absorption efficiency.

[0033] See appendix Figure 8 - Appendix Figure 11 A flexible hose 212 is provided between the branch pipe 202 and the corresponding folded pipe 206. A positioning groove 210 is provided on the radial inner wall of the branch pipe 202, and a limiting groove 211 is provided on the radial inner wall of the folded pipe 206 facing the branch pipe 202. The flexible hose 212 includes a positioning part 213 and a sliding part 215. The positioning part 213 is provided with a positioning ring 214, which is located in the positioning groove 210. A slider 216 is provided on the sliding part 215, and the slider 216 is slidably disposed in the limiting groove 211.

[0034] In this embodiment: In order to ensure the seal between the branch pipe 202 and the folded pipe 206, prevent water and fertilizer leakage, adapt to the swinging motion of the folded pipe 206, and ensure connection stability through positioning and limiting structures, a flexible hose 212 structure is designed.

[0035] In this embodiment: the flexible hose 212 serves as a flexible delivery channel between the branch pipe 202 and the folded pipe 206, replacing the rigid pipe connection. It allows the folded pipe 206 to change angles when oscillating, while simultaneously delivering fertilizer liquid. The positioning groove 210 secures the proximal end of the flexible hose 212 to the radial inner wall of the branch pipe 202, preventing the hose 212 from detaching under liquid pressure or oscillation. The limiting groove 211 restricts the distal end of the flexible hose 212, preventing excessive stretching or twisting of the hose.

[0036] In this embodiment: the positioning part 213 is a connecting section that fits against the inner wall of the branch pipe 202 and is fixed by the positioning ring 214. The positioning ring 214 is embedded in the positioning groove 210 to form a snap-fit ​​fixation, which not only prevents the hose 212 from coming out of the end of the branch pipe 202, but also ensures a seal to prevent fertilizer from leaking from the gaps.

[0037] In this embodiment: the sliding part 215 is a connecting section that can move within the inner wall of the folded tube 206, adapting to the swinging motion of the folded tube 206. The slider 216 is embedded in the limiting groove 211 and can slide along the limiting groove 211. When the folded tube 206 swings, the slider 216 drives the sliding part 215 to move within the limiting groove 211, which both restricts the movement trajectory of the hose 212 and ensures that the connection between the hose 212 and the folded tube 206 does not fall off.

[0038] In this embodiment: throughout the process, the hose 212 is always in a state of fixed end and movable end. Fertilizer flows into the hose 212 from the branch pipe 202 and is then transported to the second nozzle 223 through the folded pipe 206. Even if the swing angle of the folded pipe 206 changes, the delivery will not be interrupted and there will be no leakage.

[0039] See appendix Figure 9 - Appendix Figure 10 The folded tube 206 has a connecting arm 218 inside, which is used to connect the inner walls on both sides of the notch 217 of the folded tube 206.

[0040] In this embodiment: the connecting arm 218 is a key auxiliary structure on the folded tube 206. It not only solves the problem of the decrease in strength of the folded tube 206 after the notch 217 is opened, but also optimizes the fertilizer delivery path, does not interfere with the spraying of the second nozzle 223, and ensures that the second nozzle 223 is connected to the interior of the folded tube 206 at any angle.

[0041] In this embodiment, the multiple through-holes 217 on the folded tube 206, while providing a spraying channel for the second nozzle 223, can cause the tube wall to break, weakening the overall rigidity of the folded tube 206. Especially since the folded tube 206 requires frequent oscillation and must withstand the pressure of the fertilizer liquid, long-term operation can easily lead to deformation and cracking of the inner walls on both sides of the notches. The connecting arm 218 spans laterally between the inner walls on both sides of each notch 217, acting as a "bridge," reconnecting the broken structure at the notch 217 into a whole, enhancing the deformation resistance and service life of the folded tube 206.

[0042] In this embodiment, the connecting arm 218 is usually made of the same rigid material as the folded tube 206, such as engineering plastic or aluminum alloy, and its thickness is slightly less than that of the folded tube 206 wall, so as to ensure strength without excessively increasing the weight.

[0043] In this embodiment, the surface of the connecting arm 218 is usually designed as an arc or smooth curved surface. When fertilizer flows from the hose 212 into the folded tube 206, it can guide the liquid to flow in the direction of the rotating nozzle 221, avoiding the formation of eddies or stagnation at the notch 217, ensuring that the fertilizer supply pressure of the second nozzle 223 is uniform and the spraying effect is more stable.

[0044] In this embodiment, the design of the connecting arm 218 must strictly match the position of the notch 217 and the second nozzle 223 to avoid obstructing the spray path. The connecting arm 218 is installed inside the folded tube 206 and does not occupy the spraying area of ​​the notch 217, ensuring that the fertilizer at the notch 217 can directly act on the target area through the second nozzle 223 without obstruction.

[0045] See appendix Figure 10 and attached Figure 12 - Appendix Figure 13A drive chamber 219 is provided on the axial outer wall of the folded pipe 206 away from the branch pipe 202. A third motor 225 is installed in the drive chamber 219. A gear 226 is installed at the output end of the third motor 225. A gear ring 224 is installed on the inner wall of the rotating nozzle 221. The gear 226 meshes with the gear ring 224.

[0046] In this embodiment: the third motor 225 is the core power unit for the electrically controllable rotation of the rotary nozzle 221, which solves the problem of unstable rotation speed and inability to adjust precisely in the traditional rotary nozzle 221, allowing the second nozzle 223 to achieve uniform, targeted, and dead-angle-free spraying according to the type of fertilizer and the needs of the crop.

[0047] In this embodiment, the drive chamber 219 houses the third motor 225, gear 226, and other transmission components, preventing corrosion from field dust, mud, and fertilizer, and protecting the internal mechanical structure. The third motor 225 drives the gear 226 to rotate via its output shaft, allowing for precise speed adjustment to suit different spraying needs.

[0048] In this embodiment: the gear ring 224 is located on the inner wall of the rotating nozzle 221 and meshes with the gear 226. The inner wall is fixed on the rotating nozzle 221. When the gear 226 rotates, it drives the gear ring 224 and the entire rotating nozzle 221 to rotate synchronously.

[0049] In this embodiment: when the rotating nozzle 221 rotates, the second nozzle 223 installed on it will move in a circular motion synchronously with the nozzle, and at the same time spray fertilizer through the notch 217 on the folded tube 206.

[0050] See appendix Figure 9 and attached Figure 12 The outer wall of the folded tube 206 is provided with a rotating groove 220, and the inner wall of the rotating nozzle 221 is provided with a track 222; the track 222 is rotatably disposed in the rotating groove 220.

[0051] In this embodiment: the rotating groove 220 of the folded tube 206 is equivalent to an annular groove, and the track 222 of the rotating nozzle 221 is equivalent to an annular protrusion. After the track 222 is embedded in the rotating groove 220, it cannot move back and forth, but can rotate 360° around the axis of the folded tube 206. When the third motor 225 drives the gear 226 to mesh with the gear ring 224, the rotating nozzle 221 rotates smoothly along the rotating groove 220 under the dual action of gear drive and track guidance, without eccentricity, shaking or falling off, ensuring that the spray angle of the second nozzle 223 is accurate and consistent.

[0052] In this embodiment, the annular fit between the track 222 and the rotating groove 220 provides centering support for the rotating nozzle 221, preventing the nozzle from eccentrically shaking due to uneven force during gear 226 drive. This ensures that the rotation trajectory of the second nozzle 223 is always a perfect circle, resulting in uniform spray coverage and preventing localized overspray or missed spray.

[0053] See appendix Figure 2 - Appendix Figure 3 The support frame 101 is provided with a sliding groove 102, and the motion frame 103 is provided with a sliding seat 104. The motion frame 103 is slidably mounted on the sliding groove 102 via the sliding seat 104.

[0054] In this embodiment, the slide groove 102 of the support frame 101 and the slide seat 104 of the motion frame 103 are the core guiding components for the adjustment mechanism 1 to achieve precise lateral / longitudinal movement. Through sliding engagement, the motion frame 103 drives the entire spraying mechanism 2 to flexibly adjust its position, adapting to crops with different row spacings and planting densities, thus solving the problems of fixed spray width, missed spraying, or double spraying in traditional devices.

[0055] In this embodiment: the groove 102 of the support frame 101 is equivalent to a fixed track, and the slide 104 of the moving frame 103 is equivalent to a slider. After the slide 104 is precisely embedded in the groove 102, it can only slide along the length of the groove 102 and cannot shift left or right or fall off up or down. When it is necessary to adjust the spray width, the moving frame 103 is driven (by a motor), and the slide 104 slides smoothly along the groove 102, driving the fixed spray pipe 201, folding pipe 206 and other spraying components to move synchronously until the target coverage width is achieved.

[0056] See appendix Figure 3 - Appendix Figure 5 The motion frame 103 has a through-hole limiting cavity 105, and a motion seat 110 is slidably disposed on the motion frame 103, which is slidably disposed in the limiting cavity 105. A first motor 106 is also installed on the motion frame 103, and a threaded rod 107 is provided at the output end of the first motor 106. A threaded hole 111 is provided on the motion seat 110, and the threaded rod 107 is threadedly connected in the threaded hole 111.

[0057] In this embodiment: the first motor 106 drives the motion seat 110 to perform precise position adjustments on the spraying mechanism 2, adapting to the precise fertilization needs of different planting densities and crop spacing. The limiting cavity 105 is a through-type elongated cavity on the motion frame 103, which restricts the movement direction of the motion seat 110, prevents the motion seat from shifting or rotating, and ensures accurate displacement.

[0058] See appendix Figure 2 - Appendix Figure 3A suspension 108 is provided on the motion frame 103, and a mounting base 109 is provided on the suspension 108; a collection cylinder 203 is installed on the mounting base 109, and a conveying pipe 204 is installed on the collection cylinder 203, which is connected to the fixed spray pipe 201.

[0059] In this embodiment: the suspension 108 is located on the motion frame 103, used for bearing weight and connecting the carrier, and also adapted to the sliding of the motion frame 103. The storage cylinder 203 is a temporary fertilizer storage unit, used to hold diluted liquid fertilizer, such as trace element fertilizer solution and water-soluble compound fertilizer. The volume is usually designed according to the operation requirements, and some have a stirring function to prevent fertilizer sedimentation.

[0060] The delivery pipe 204 is a fertilizer delivery channel between the storage cylinder 203 and the fixed spray pipe 201. It accurately delivers the liquid fertilizer in the storage cylinder 203 to the fixed spray pipe 201, and then distributes it to the branch pipe 202 and the folded pipe 206, and finally sprays it out through the nozzle.

[0061] In this embodiment, the storage cylinder 203 is directly mounted on the moving frame 103 and moves synchronously with the spraying mechanism 2, eliminating the need for an additional traction hose and avoiding hose tangling, pulling, or being crushed by crops. This design is particularly suitable for large-scale mobile field operations. The volume design is adapted to the needs of a single operation, reducing the hassle of frequent fertilization and preventing excessive load on the moving frame 103 due to excessive fertilizer storage, thus ensuring adjustment flexibility.

[0062] See appendix Figure 3 and attached Figure 5 The motion seat 110 has a plug-in cavity 112, and the fixed spray pipe 201 is detachably installed in the plug-in cavity 112; the adjustment mechanism 1 also includes a control panel.

[0063] In this embodiment: the plug-in cavity 112 is a quick-connect interface located on the motion seat 110, providing a detachable mounting base for the fixed spray pipe 201. The inner wall is typically designed with positioning bosses, snaps, or threads to ensure a secure and stable installation without shaking. The fixed spray pipe 201 is located inside the plug-in cavity 112. The detachable main spray pipe is fixed to the motion seat 110 via a plug-in connection, enabling quick installation / removal and facilitating maintenance, replacement, or storage.

[0064] In this embodiment: the control panel is the control center of the entire device, integrating buttons, display screen, and controllers such as PLC and microcontroller, used to uniformly control the operation of each motor and fertilizer supply system, and realize parameter setting, status monitoring and manual / automatic switching.

[0065] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and inventive features disclosed herein.

Claims

1. A device for uniformly spraying fertilizer onto crops, characterized in that, include: The adjustment mechanism (1) includes a support frame (101) and a motion frame (103) slidably disposed on the support frame (101). The spraying mechanism (2) includes a fixed spray pipe (201) mounted on the motion frame (103) and a folded pipe (206) oscillatingly mounted on the fixed spray pipe (201). The fixed spray pipe (201) includes multiple branch pipes (202), and the folded pipe (206) is movably installed at the end of the branch pipe (202); the folded pipe (206) has multiple through notches (217); a rotating spray pipe (221) is rotatably installed on the outer wall of the folded pipe (206); a first nozzle (205) is installed on the branch pipe (202), and a multiple second nozzle (223) corresponding to the multiple notches (217) is installed on the rotating spray pipe (221).

2. The crop uniform spraying and fertilization device according to claim 1, characterized in that: The branch pipe (202) is provided with a first swing seat (207), and the folded pipe (206) is provided with a second swing seat (208). The folded pipe (206) is movably mounted on the first swing seat (207) through the second swing seat (208). A second motor (209) is provided on the branch pipe (202), and the output end of the second motor (209) is connected to the second swing seat (208).

3. A uniform spraying and fertilization device for crops according to claim 1 or 2, characterized in that: A flexible tube (212) is provided between the branch pipe (202) and the corresponding folded pipe (206). A positioning groove (210) is provided on the radial inner wall of the branch pipe (202), and a limiting groove (211) is provided on the radial inner wall of the folded pipe (206) facing the branch pipe (202). The hose (212) includes a positioning part (213) and a sliding part (215). The positioning part (213) is provided with a positioning ring (214), which is located in the positioning groove (210). The sliding part (215) is provided with a slider (216), which is slidably disposed in the limiting groove (211).

4. A uniform spraying and fertilization device for crops according to claim 1 or 2, characterized in that: The folded tube (206) is provided with a connecting arm (218) inside, which is used to connect the inner walls on both sides of the notch (217) of the folded tube (206).

5. A uniform spraying and fertilization device for crops according to claim 1 or 2, characterized in that: A drive chamber (219) is provided on the axial outer wall of the folded pipe (206) away from the branch pipe (202). A third motor (225) is installed in the drive chamber (219). A gear (226) is installed at the output end of the third motor (225). A gear ring (224) is installed on the inner wall of the rotating nozzle (221). The gear (226) meshes with the gear ring (224).

6. A uniform spraying and fertilization device for crops according to claim 1 or 2, characterized in that: The outer wall of the folded tube (206) is provided with a rotating groove (220), and the inner wall of the rotating nozzle (221) is provided with a track (222). The track (222) is rotatably mounted in the rotating groove (220).

7. A uniform spraying and fertilization device for crops according to claim 1 or 2, characterized in that: The support frame (101) is provided with a sliding groove (102), and the motion frame (103) is provided with a sliding seat (104). The motion frame (103) is slidably mounted on the sliding groove (102) via the sliding seat (104).

8. A uniform spraying and fertilization device for crops according to claim 1 or 2, characterized in that: The motion frame (103) has a through limiting cavity (105), and a motion seat (110) is slidably disposed on the motion frame (103), and the motion seat (110) is slidably disposed in the limiting cavity (105); The motion frame (103) is also equipped with a first motor (106), the output end of the first motor (106) is provided with a threaded rod (107), the motion seat (110) is provided with a threaded hole (111), and the threaded rod (107) is threadedly connected in the threaded hole (111).

9. A uniform spraying and fertilization device for crops according to claim 1 or 2, characterized in that: The motion frame (103) is provided with a suspension (108), and the suspension (108) is provided with a mounting base (109). A storage cylinder (203) is installed on the mounting base (109), and a conveying pipe (204) is installed on the storage cylinder (203). The conveying pipe (204) is connected to the fixed spray pipe (201).

10. The crop uniform spraying and fertilization device according to claim 8, characterized in that: The motion seat (110) has a plug-in cavity (112), and the fixed spray pipe (201) can be detachably installed in the plug-in cavity (112); And / or, the adjustment mechanism (1) may also include a control panel.

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