An automatic pesticide application device for soybean fields

Abstract

The embodiment of the present disclosure provides an automatic pesticide application device for soybean field, comprising: a suspension frame for connecting with a tractor and carrying the whole device; a hydraulic lifting rod fixedly connected with the suspension frame; a spray head support adjusted in lifting by the hydraulic lifting rod; a plurality of spray heads arranged on the spray head support; a guide pulley block installed on both sides of the suspension frame for guiding the spray head support to move along the field travel direction; wherein the spray head support has a groove structure arranged at the bottom of the spray head support and matched with the hydraulic lifting rod to reduce the vibration transmission in the vertical direction; the spray head support is further provided with an elastic buffer pad laid on the contact surface of the spray head support and the hydraulic lifting rod; and the top of the spray head support is provided with a reinforcing rib plate arranged in the middle area of the spray head support. Through the scheme of the embodiment of the present disclosure, the influence of vibration on pesticide application uniformity during field operation can be reduced.

Description

Technical Field

[0001] This application relates to the field of agricultural machinery technology, specifically to an automatic pesticide application device for soybean fields. Background Technology

[0002] Automated pesticide application systems for soybean fields are mechanical devices that can operate autonomously in the field and spray pesticides according to set parameters. They aim to improve application efficiency and accuracy, reduce manual labor intensity, and minimize pesticide waste and environmental pollution. However, during field operations, the devices are susceptible to vibration due to uneven terrain and equipment movement. This vibration can lead to unstable nozzle flow or uneven spray distribution, thus affecting the uniformity of pesticide application and the overall effectiveness of the application. Summary of the Invention

[0003] In view of this, the present disclosure provides an automatic pesticide application device for soybean fields, which at least partially solves the problems existing in the prior art.

[0004] This application discloses an automatic pesticide application device for soybean fields, comprising: a suspension frame for connecting to a tractor and supporting the entire device; a hydraulic lifting rod fixedly connected to the suspension frame; a nozzle support for raising and lowering via the hydraulic lifting rod; multiple nozzles mounted on the nozzle support; and guide pulley sets installed on both sides of the suspension frame for guiding the nozzle support to move along the field travel direction. The nozzle support has a grooved structure located at its bottom and engaging with the hydraulic lifting rod to reduce vertical vibration transmission. The nozzle support also includes an elastic buffer pad laid on the contact surface between the nozzle support and the hydraulic lifting rod. A reinforcing rib is located at the top of the nozzle support in its central region.

[0005] Preferably, the end of the suspension frame has a U-shaped structure with reinforcing ribs on both sides.

[0006] Preferably, the hydraulic lifting rod is connected to the suspension frame via a flange, and the flange is provided with locking bolts for fixing the hydraulic lifting rod.

[0007] Preferably, the elastic buffer pad is a multi-layer composite structure, including a rubber layer and a foam layer. The rubber layer is bonded to the bottom surface of the nozzle bracket, and the foam layer is attached to the top of the hydraulic lifting rod.

[0008] Preferably, the reinforcing rib includes multiple sets of diamond-shaped ribs, which are interlaced and embedded inside the nozzle bracket and fixed to the nozzle bracket frame by rivets.

[0009] Preferably, the guide pulley assembly consists of two pulley axles, which are installed on both sides of the suspension frame, and locking nuts are provided at the ends of the pulley axles.

[0010] Preferably, the inner wall of the groove structure of the nozzle bracket is provided with a shock-absorbing coating, and the bottom of the nozzle bracket is provided with a dust cover, which matches the groove structure.

[0011] Preferably, a supporting beam is provided between the reinforcing ribs of the nozzle bracket, and the supporting beam and the nozzle bracket are integrally formed.

[0012] Preferably, the nozzle has a quick-connect interface on its input port, and the quick-connect interface is equipped with a sealing ring.

[0013] Preferably, the bottom edge of the nozzle bracket is provided with an inclined guide plate, which extends from the groove structure to both ends.

[0014] This disclosure provides an automatic pesticide application device for soybean fields, comprising: a suspension frame for connecting to a tractor and supporting the entire device; a hydraulic lifting rod fixedly connected to the suspension frame; a nozzle support for height adjustment via the hydraulic lifting rod; multiple nozzles mounted on the nozzle support; and guide pulleys installed on both sides of the suspension frame to guide the nozzle support to move along the field travel direction. The nozzle support has a grooved structure located at its bottom and cooperating with the hydraulic lifting rod to reduce vertical vibration transmission. The nozzle support also includes an elastic buffer pad on the contact surface between the nozzle support and the hydraulic lifting rod. A reinforcing rib is located at the top of the nozzle support in its central region. This embodiment of the disclosure addresses the issue of reducing the impact of vibration during field operations on pesticide application uniformity. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the exemplary embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a front view of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall rear side of the structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the nozzle structure in this utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the nozzle bracket in this utility model.

[0020] In the diagram: 1. Suspension frame; 11. Reinforcing rib; 2. Hydraulic lifting rod; 21. Flange; 22. Locking bolt; 3. Nozzle bracket; 31. Groove structure; 311. Shock-absorbing coating; 32. Elastic buffer pad; 321. Rubber layer; 322. Foam layer; 33. Reinforcing rib; 331. Diamond rib; 332. Rivet; 333. Support beam; 34. Dust cover; 35. Deflector plate; 4. Nozzle; 41. Quick connection interface; 42. Sealing ring; 5. Guide pulley block; 51. Pulley axle; 52. Locking nut Detailed Implementation

[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0022] like Figure 1 and Figure 4 As shown, an automatic pesticide application device for soybean fields according to this application includes a suspension frame 1 for connecting to a tractor and supporting the entire device. The suspension frame 1 is typically constructed of a steel frame structure and is connected to the rear power take-off shaft of the tractor via a standard agricultural coupling, enabling the movement and stable support of the entire device. The design of this device allows the entire pesticide application system to operate smoothly in the field as the tractor moves.

[0023] The suspension frame 1 is also equipped with a hydraulic lifting rod 2, which is fixedly connected to the suspension frame 1 and used to adjust the height of the device. The hydraulic lifting rod 2 usually adopts a telescopic cylinder structure, and the height adjustment is achieved through a hydraulic oil circuit control system. Its installation position is generally located below the suspension frame 1, and it is fixed by welding or bolts to form a stable connection with the suspension frame 1, ensuring the stability and controllability of the device throughout the operation.

[0024] The nozzle support 3 is raised and lowered via a hydraulic lifting rod 2 to support the nozzle 4 assembly. The nozzle support 3 typically employs a multi-layered structure, with its top moving up and down via a sliding section of the hydraulic lifting rod 2. The nozzle support 3 is usually connected to the hydraulic lifting rod 2 through multiple suspension points to ensure stability during raising and lowering. Its bottom is also designed with a groove structure 31 to engage with the guide section of the hydraulic lifting rod 2, reducing vibration transmission in the vertical direction.

[0025] Multiple nozzles 4 are mounted on the nozzle holder 3 for evenly spraying pesticides onto soybean plants. The nozzles 4 are typically made of highly wear-resistant materials, such as stainless steel or engineering plastics, and feature an anti-clogging design to accommodate various liquid pesticides. The nozzles 4 are installed at different positions on the nozzle holder 3, usually arranged according to plant density, to ensure wide and even pesticide coverage.

[0026] Guide pulley blocks 5 are installed on both sides of the suspension frame 1 to guide the sprinkler head bracket 3 to move smoothly along the field direction. Guide pulley blocks 5 generally consist of multiple rollers, each roller fixed to a support structure on the suspension frame 1 via bearings. The pulleys contact the guide rods of the sprinkler head bracket 3, thereby limiting the lateral swing of the sprinkler head bracket 3 and keeping it aligned with the direction of the field ridges. This design effectively improves the stability of the device under different terrain conditions.

[0027] The nozzle support 3 has a groove structure 31 at its bottom, which is located at the bottom of the nozzle support 3 and cooperates with the hydraulic lifting rod 2 to reduce the transmission of vibration in the vertical direction. The groove structure 31 is usually V-shaped or U-shaped, and can be filled with shock-absorbing material or designed to fit tightly against the sliding surface of the hydraulic lifting rod 2. Through this groove design, vibrations caused by ground undulations can be absorbed or dispersed when the device travels in the field, thereby reducing the impact force on the nozzle 4 system.

[0028] The nozzle bracket 3 is also equipped with an elastic buffer pad 32, which is laid on the contact surface between the nozzle bracket 3 and the hydraulic lifting rod 2 to absorb lateral vibrations. The elastic buffer pad 32 is generally made of high-strength rubber or synthetic materials, and has a certain degree of compressibility and resilience, which can effectively isolate the lateral displacement and vibration generated by the nozzle bracket 3 during operation. The buffer pad is directly pasted or fixed to the contact area between the nozzle bracket 3 and the hydraulic lifting rod 2 by screws to ensure that it can maintain good shock absorption performance even under long-term operation.

[0029] The nozzle support 3 is equipped with reinforcing ribs 33 at its top, which are staggered in the central area of ​​the nozzle support 3 to enhance structural rigidity and suppress local deformation. The reinforcing ribs 33 are typically manufactured using a steel plate bending process and welded to the main beam of the nozzle support 3, making the overall structure more stable. This design not only improves the overall strength of the nozzle support 3 but also prevents deformation caused by uneven stress, further enhancing the service life and reliability of the pesticide application device.

[0030] To effectively reduce the impact of vibration during field operations on the uniformity of pesticide application, the automatic pesticide application device in this application addresses this issue through structural design. A grooved structure 31 and an elastic buffer pad 32 are added between the nozzle support 3 and the hydraulic lifting rod 2 to weaken the transmission of vertical and lateral vibrations. Simultaneously, a top reinforcing rib 33 enhances structural stability, preventing nozzle 4 misalignment or uneven spraying due to localized deformation. Furthermore, the design of the guide pulley group 5 enhances the stability and guidance of the nozzle support 3 during operation, ensuring that the nozzle 4 is always in the correct spraying position, thereby improving the uniformity and efficiency of the entire device.

[0031] like Figure 1 As shown, in one embodiment, the suspension frame 1 of an automatic pesticide application device for soybean fields according to this application adopts a U-shaped structure design at its end, which enhances the mechanical stability of the connection with the tractor. Reinforcing ribs 11 are provided on both sides of the U-shaped structure, increasing the local material thickness and structural support to improve the suspension frame 1's resistance to deformation during operation. This design helps prevent loosening or damage to the connection due to vibration or pressure in complex farmland terrain.

[0032] For example, the two ends of the suspension frame 1 are bent into a U-shape, and a reinforcing rib 11 with a certain thickness is embedded in the inside of its side wall. The reinforcing rib 11 extends along the length of the suspension frame 1 and is welded or screwed to the main body of the suspension frame 1 to form an integrated high-strength connection structure.

[0033] like Figure 1 As shown, in one embodiment, the hydraulic lifting rod 2 and the suspension frame 1 of an automatic pesticide application device for soybean fields are fixedly connected by a flange 21. The flange 21 is positioned between the hydraulic lifting rod 2 and the suspension frame 1 to enhance stability between them and is secured by locking bolts 22, ensuring that the position of the hydraulic lifting rod 2 does not easily shift during operation. The flange 21 is installed at the junction of the bottom of the hydraulic lifting rod 2 and the upper part of the suspension frame 1, and its structure includes a flat connecting surface and several through holes to accommodate the installation and adjustment of the locking bolts 22. This connection method not only improves the overall stability of the device but also facilitates subsequent maintenance and disassembly.

[0034] Specifically, the top of the suspension frame 1 is provided with a connecting part for mounting the flange 21. This connecting part is a metal plate structure with standard holes machined on its surface. The lower end of the hydraulic lifting rod 2 also has a matching mounting surface and is connected to the suspension frame 1 by bolts passing through the holes on the flange 21. Locking bolts 22 are screwed into the threaded holes between the flange 21 and the suspension frame 1 to limit relative movement, thereby achieving reliable fixation of the hydraulic lifting rod 2.

[0035] like Figure 4 As shown, in one embodiment, the nozzle support 3 of an automatic pesticide application device for soybean fields according to this application has a groove structure 31, which is disposed at the bottom of the nozzle support 3 and cooperates with the hydraulic lifting rod 2 to reduce the transmission of vibration in the vertical direction. The inner wall of the groove structure 31 is provided with a shock-absorbing coating 311, which can effectively absorb the vibration energy transmitted upward from the hydraulic lifting rod 2, thereby improving the stability of the nozzle support 3 during operation and reducing the phenomenon of uneven spraying caused by vibration. The shock-absorbing coating 311 is closely attached to the inner wall of the groove and is firmly integrated with the overall structure of the nozzle support 3, ensuring good shock absorption performance during long-term use.

[0036] Specifically, the shock-absorbing coating 311 can be made of rubber or polyurethane material and is directly attached to the inner wall of the groove structure 31 by spraying, bonding, or pouring. The coating covers the entire inner surface of the groove and is thickened at the contact point with the hydraulic lifting rod 2 to enhance the buffering effect against vertical vibrations. This structural design ensures that the nozzle bracket 3 can effectively disperse pressure when subjected to external impact, improving the durability and operational quality of the device.

[0037] like Figure 4 As shown, in one embodiment, the elastic buffer pad 32 of an automatic pesticide application device for soybean fields according to this application has a multi-layer composite structure, including a rubber layer 321 and a foam layer 322. The rubber layer 321 is bonded to the bottom surface of the nozzle support 3, and the foam layer 322 is attached to the top of the hydraulic lifting rod 2. This design enables the elastic buffer pad 32 to effectively mitigate vibration transmission between the nozzle support 3 and the hydraulic lifting rod 2, improving the stability of the device operation. The nozzle support 3 achieves height adjustment through the hydraulic lifting rod 2, and its bottom is provided with a groove structure 31 that cooperates with the hydraulic lifting rod 2 to reduce the impact of vertical vibration. At the same time, the elastic buffer pad 32 provided at the contact surface between the nozzle support 3 and the hydraulic lifting rod 2 further optimizes the shock absorption effect and enhances the device's ability to adapt to different terrains.

[0038] Specifically, a rubber layer 321 is bonded between the bottom of the nozzle bracket 3 and the top of the hydraulic lifting rod 2, ensuring a tight fit between the rubber layer 321 and the nozzle bracket 3. A foam layer 322 is then laid on top of the rubber layer 321, completely covering the top of the hydraulic lifting rod 2, thus forming a stable multi-layered buffer structure. This structure not only enhances the absorption of lateral vibrations but also improves overall durability and safety through the layered material design.

[0039] like Figure 2 As shown, in one embodiment, the reinforcing rib 33 of the automatic spraying device for soybean fields of this application has a rhomboid structure and is embedded inside the nozzle support 3, and is fixed to the frame of the nozzle support 3 by rivets 332. This structural design improves the load-bearing capacity and deformation resistance of the nozzle support 3, especially when subjected to external forces, it can effectively prevent plastic deformation in local areas and ensure the stable operation of the nozzle 4 assembly. The ribs are located in the middle area of ​​the nozzle support 3 and are distributed in an interlaced pattern, which makes the stress more uniform and enhances the overall mechanical strength and durability.

[0040] Specifically, the diamond-shaped rib 331 is molded and then embedded into the internal cavity of the nozzle bracket 3. The rib is connected to the frame of the nozzle bracket 3 by bolts or rivets 332 to form a rigid connection structure, thereby achieving the reinforcement of the nozzle bracket 3.

[0041] like Figure 1 As shown, in one embodiment, the guide pulley assembly 5 of the automatic pesticide application device for soybean fields according to this application consists of two pulley axles 51. The pulley axles 51 are installed on both sides of the suspension frame 1 to help the nozzle bracket 3 maintain stability during movement. The pulley axles 51 are connected to the suspension frame 1 by fasteners to ensure that they will not shift or loosen during field operations. A locking nut 52 is provided at the end of the pulley axle 51 to further prevent the pulley from rotating or falling off during use, thereby improving the stability and reliability of the entire device.

[0042] Specifically, the two pulley axles 51 of the guide pulley block 5 are fixed to the left and right sides of the suspension frame 1, respectively, and their axles are fixed to the suspension frame 1 by welding or screw connection. A locking nut 52 is installed at the end of the pulley axle 51. By rotating the locking nut 52, the pulley axle 51 can be fixed to the suspension frame 1 to prevent it from shifting under high-speed movement or bumpy conditions, thereby ensuring the stability and precise guidance of the nozzle bracket 3 during movement.

[0043] like Figure 2As shown, in one embodiment, the nozzle support 3 of an automatic pesticide application device for soybean fields according to this application is provided with a dust cover 34 at its bottom. The dust cover 34 is adapted to a groove structure 31 provided on the nozzle support 3. The groove structure 31 is provided at the bottom of the nozzle support 3 and corresponds to the hydraulic lifting rod 2, so that the dust cover 34 can cover the bottom area of ​​the hydraulic lifting rod 2, preventing soil particles, debris and other impurities from entering the moving gaps of the hydraulic lifting rod 2, thereby playing a sealing and protective role. The dust cover 34 not only enhances the dustproof performance of the device, but also effectively extends the service life of the hydraulic lifting rod 2.

[0044] Specifically, the dust cover 34 is made of metal or plastic material with the same shape as the groove structure 31, and is fixed to the bottom of the nozzle bracket 3 by screws or clips. The dust cover 34 covers the outer edge of the hydraulic lifting rod 2, preventing it from being directly exposed to the external environment and ensuring that it is not easily affected by pollutants such as mud and sand during frequent lifting and lowering. At the same time, a sealed space is formed between the dust cover 34 and the groove structure 31, improving the sealing performance.

[0045] like Figure 2 As shown, in one embodiment, the nozzle support 3 of an automatic pesticide application device for soybean fields according to this application has a reinforcing rib plate 33 structure to improve the overall structural strength and stability. The reinforcing rib plates 33 are disposed in the central region of the nozzle support 3 and distributed in a staggered manner, thereby effectively dispersing the stress and preventing deformation due to stress concentration in local areas. Furthermore, support beams 333 are also arranged between the reinforcing rib plates 33 to further enhance the structural stability of the nozzle support 3 and improve its durability during long-term operation.

[0046] Specifically, during the manufacturing process of the nozzle bracket 3, the support beam 333 is integrally formed with the nozzle bracket 3, so that the support beam 333 and the nozzle bracket 3 form an integral structure, ensuring that the connection between the two is firm and not easy to separate, thereby improving the overall rigidity and reliability of the device when operating in the field.

[0047] like Figure 3 As shown, in one embodiment, the nozzle 4 of an automatic pesticide application device for soybean fields has a quick-connect interface 41 pre-installed on its input port. This quick-connect interface 41 is equipped with a sealing ring 42 to prevent pesticide leakage at the connection point. The quick-connect interface 41 is located at the inlet end of the nozzle 4, facilitating quick docking and disconnection with the infusion pipeline or pesticide supply system, while ensuring good sealing performance during long-term use. The sealing ring 42 is located on the inner wall of the quick-connect interface 41, forming a tight fit with the infusion components, effectively preventing pesticide leakage due to vibration or pressure changes, and ensuring the stability and reliability of the pesticide application process.

[0048] For example, the input port of nozzle 4 is designed as a cylindrical structure with external threads machined on its inner side to match the internal threads of quick-connect interface 41. Quick-connect interface 41 is entirely made of metal with a rust-proof surface treatment to adapt to field operating environments. The sealing ring 42 is made of elastic rubber and is embedded in the annular groove of quick-connect interface 41. When connected to the drug delivery hose, pressure is applied to quick-connect interface 41 by external fasteners, causing the sealing ring 42 to deform and adhere tightly to the drug delivery pipe, thus achieving an effective seal.

[0049] like Figure 4 As shown, in one embodiment, the nozzle support 3 of an automatic pesticide application device for soybean fields according to this application has an inclined guide plate 35 at its bottom edge, which extends from the groove structure 31 of the nozzle support 3 to both ends. This structural design, by setting the guide plate 35 at a certain angle at the bottom of the nozzle support 3, forms a guiding effect on the airflow, allowing the lateral airflow to flow along the surface of the guide plate 35, thereby reducing the possibility of it directly impacting the nozzle support 3. The setting of the guide plate 35 helps to improve the stability of the device in windy environments, while avoiding the displacement of the nozzle 4 or uneven distribution of pesticide solution due to airflow disturbance.

[0050] Specifically, an arc-shaped or inclined guide plate 35 is welded to the bottom edge of the nozzle support 3. This guide plate is tightly integrated with the bottom edge of the nozzle support 3 and secured by fasteners or welding. The overall shape of the guide plate 35 gradually widens along the length of the bottom surface of the nozzle support 3 and extends to both sides, giving the guide plate 35 an inverted trapezoidal or polygonal structure. This design not only ensures the structural stability but also enhances the airflow guidance effect.

[0051] In actual operation, when this device is in use, the entire device is put into working condition by connecting the suspension frame 1 to the tractor. The hydraulic lifting rod 2 adjusts the height of the device as needed to keep the nozzle bracket 3 in a suitable application position. The nozzle 4 is set on the nozzle bracket 3, which can spray the pesticide evenly on the soybean plants. The guide pulley group 5 is installed on both sides of the suspension frame 1 to guide the nozzle bracket 3 to move smoothly along the field direction. The bottom of the nozzle bracket 3 is provided with a groove structure 31 that cooperates with the hydraulic lifting rod 2 to reduce the transmission of vibration in the vertical direction. The contact surface between the nozzle bracket 3 and the hydraulic lifting rod 2 is covered with an elastic buffer pad 32 to absorb lateral vibration. The top of the nozzle bracket 3 is provided with a reinforcing rib 33 to enhance the structural rigidity and suppress local deformation, thereby ensuring the stability and reliability of the device during operation.

[0052] The specific embodiments described above further illustrate the purpose, technical solutions, and beneficial effects of the embodiments of this disclosure. It should be understood that the above descriptions are merely specific embodiments of the embodiments of this disclosure and are not intended to limit the scope of protection of the embodiments of this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the embodiments of this disclosure should be included within the scope of protection of the embodiments of this disclosure.

Claims

1. An automatic pesticide application device for soybean fields, characterized in that, include: Suspension frame (1) is used to connect to the tractor and carry the entire device; The hydraulic lifting rod (2) is fixedly connected to the suspension frame (1); the nozzle bracket (3) is raised and lowered by the hydraulic lifting rod (2); Multiple nozzles (4) are mounted on a nozzle support (3); guide pulleys (5) are installed on both sides of the suspension frame (1) to guide the nozzle support (3) to move along the field direction; wherein, the nozzle support (3) has a groove structure (31), which is set at the bottom of the nozzle support (3) and cooperates with the hydraulic lifting rod (2) to reduce the transmission of vibration in the vertical direction; the nozzle support (3) is also provided with an elastic buffer pad (32), which is laid on the contact surface between the nozzle support (3) and the hydraulic lifting rod (2); the top of the nozzle support (3) is provided with a reinforcing rib (33) located in the middle area of ​​the nozzle support (3).

2. The automatic pesticide application device for soybean fields according to claim 1, characterized in that: The end of the suspension frame (1) is a U-shaped structure with reinforcing ribs (11) on both sides.

3. An automatic pesticide application device for soybean fields according to claim 1, characterized in that: The hydraulic lifting rod (2) is connected to the suspension frame (1) via a flange (21), and the flange (21) is provided with locking bolts (22) for fixing the hydraulic lifting rod (2).

4. An automatic pesticide application device for soybean fields according to claim 1, characterized in that: The elastic buffer pad (32) is a multi-layer composite structure, including a rubber layer (321) and a foam layer (322). The rubber layer (321) is bonded to the bottom surface of the nozzle bracket (3), and the foam layer (322) is attached to the top of the hydraulic lifting rod (2).

5. An automatic pesticide application device for soybean fields according to claim 1, characterized in that: The reinforcing rib (33) includes multiple sets of rhomboid ribs (331), which are interlaced and embedded inside the nozzle bracket (3) and fixed to the nozzle bracket (3) frame by rivets (332).

6. An automatic pesticide application device for soybean fields according to claim 1, characterized in that: The guide pulley assembly (5) consists of two pulley shafts (51), which are installed on both sides of the suspension frame (1), and a locking nut (52) is provided at the end of the pulley shaft (51).

7. An automatic pesticide application device for soybean fields according to claim 1, characterized in that: The inner wall of the groove structure (31) of the nozzle bracket (3) is provided with a shock-absorbing coating (311), and the bottom of the nozzle bracket (3) is provided with a dust cover (34), which matches the groove structure (31).

8. An automatic pesticide application device for soybean fields according to claim 1, characterized in that: The nozzle bracket (3) has a supporting beam (333) between the reinforcing ribs (33), and the supporting beam (333) and the nozzle bracket (3) are integrally formed.

9. An automatic pesticide application device for soybean fields according to claim 1, characterized in that: The nozzle (4) has a quick connection interface (41) reserved on its input port, and the quick connection interface (41) is provided with a sealing ring (42).

10. An automatic pesticide application device for soybean fields according to claim 1, characterized in that: The nozzle bracket (3) has an inclined guide plate (35) at its bottom edge, which extends from the groove structure (31) to both ends.

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