A corn granule pesticide targeted point application device and method

Abstract

The application belongs to the technical field of corn planting, and particularly relates to a corn granular pesticide targeted point application device, which comprises a main storage frame for storing granular pesticides, and side storage frames are arranged on the left and right sides of the main storage frame through extension mechanisms, the extension mechanism comprises an extension frame slidingly inserted into the side of the main storage frame and a rotating rod rotatably inserted into the inner side of the main storage frame. The corn granular pesticide targeted point application device and method, when the first adjusting rod rotates, the fixed block and the limiting block will move relative to each other, so that the return spring is stretched or compressed, after the vertical extension rod is separated from the corn stalk diameter, under the action of the return spring, the fixed block drives the first adjusting rod to return to the original position, so as to facilitate the contact between the vertical extension rod and the next corn stalk diameter, so that the device can continuously and repeatedly operate, and the continuous corn granular pesticide targeted automatic point application can be realized.

Description

Technical Field

[0001] This invention relates to the field of plant protection machinery technology, specifically to a corn granule pesticide targeted application device and method. Background Technology

[0002] Corn borers are one of the most critical pests affecting corn during its growth period. The larvae are borers, and the typical symptom they cause is that the whorl of the corn plant is pierced, resulting in neat rows of small holes in the unfolded leaves. After the tassels emerge, the larvae often burrow into the flowers, easily causing the base of the tassel to break. Therefore, if not controlled in time, corn borers can cause significant damage to corn growth and later yield.

[0003] Studies have shown that the stage of corn tasseling (the stage where corn plants reach their large trumpet-like tips) is the optimal time for controlling corn borers. At this stage, corn plants typically reach a height of 100-150 cm. Currently, farmers often use a solution of 100 grams of 50% carbaryl per acre diluted in 100 kg of water for spraying or irrigating the whorl. Alternatively, they can use 1 kg of 25% synergistic insecticide mixed with 5 kg of water and 25 kg of fine sand to make granules, applying 10 kg per acre to the whorl. However, spraying pesticides is often ineffective, and targeted spraying is time-consuming and difficult, easily leading to pesticide waste. Even when using granular pesticides, the target area must be aimed at the whorl. Currently, there is a lack of professional application equipment, and most farmers use manual application, which is inefficient and increases labor costs. Domestic researchers have developed a water-soluble solution of Beauveria bassiana for ultra-low-volume spraying using drones to control corn borers. However, this method is not conducive to activating the Beauveria bassiana strain and does not align with the corn borer's feeding habit of specifically targeting the whorl of corn plants, making it difficult to achieve optimal control.

[0004] Therefore, it is urgent to develop a corn granule pesticide targeted application device that can be matched with a self-propelled elevated field management vehicle to form a corn granule pesticide targeted application machine. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a corn granule pesticide targeted application device and method, which solves the problems of "poor spraying effect, long time consumption and high difficulty, and low efficiency of granule pesticide fertilization".

[0006] To achieve the above objectives, the present invention provides the following technical solution: a corn granular pesticide targeted application device, comprising a main storage frame for storing granular pesticide, side storage frames provided on both the left and right sides of the main storage frame via extension mechanisms, the extension mechanism comprising an extension frame slidably inserted into the side of the main storage frame and a rotating rod rotatably inserted into the inner side of the main storage frame, the side of the extension frame away from the main storage frame being fixedly connected to the side storage frame, uniformly distributed toothed plates being fixedly installed on the inner side of the extension frame, a rotating gear meshing with the toothed plates being fixedly sleeved on the outer side of the rotating rod, the top of the rotating rod extending to the top of the main storage frame and having a knob fixedly installed thereon, symmetrically distributed transverse grooves being formed at the top and bottom of the extension frame, the bottom end of the rotating rod passing through the transverse grooves and rotatably connected to the bottom of the inner side of the main storage frame.

[0007] As a preferred embodiment of the present invention, the top of both the main storage frame and the side storage frame are provided with a feeding port, the inner side of the feeding port is fitted with a cap, the bottom of both the main storage frame and the side storage frame are provided with a discharging port, the front of the main storage frame is fixedly mounted with a mounting plate, and the outer side of the mounting plate is uniformly provided with threaded mounting grooves.

[0008] As a preferred embodiment of the present invention, a fixed base is fixedly installed on the top of the main storage frame and on the side of the knob. A vertical plate is slidably connected to the inner side of the fixed base. A plug rod is fixedly installed on the side of the vertical plate near the knob. Insertion holes that match the size and position of the plug rod are evenly opened on the outer side of the knob. A tension spring is fixedly installed between the side of the vertical plate away from the plug rod and the inner side of the fixed base.

[0009] As a preferred embodiment of the present invention, a flow guide frame is fixedly installed on the inner side of both the main storage frame and the side storage frame. The flow guide frame has a conical design, and a guide tube is fixedly installed at the bottom of the flow guide frame. A connecting tube is fixedly installed at the bottom of the guide tube, and a first pair of connecting pipes is fixedly installed at the bottom end of the connecting tube. A first docking groove is opened on the inner side of the first pair of connecting pipes. A second pair of connecting pipes is rotatably connected to the bottom of the inner side of the main storage frame and the side storage frame, and docks with the outlet position. A second docking groove matching the size of the first docking groove is opened on the inner side of the second pair of connecting pipes. The first docking groove, the guide tube, and the connecting tube are interconnected. The second docking groove is interconnected with the outlet. The first pair of connecting pipes and the second pair of connecting pipes fit together.

[0010] As a preferred embodiment of the present invention, a driven gear is fixedly sleeved on the outer side of the second pair of connecting pipes, a fixing plate is fixedly installed on the inner side of the main storage frame and the side storage frame, a first adjusting rod is rotatably connected to the bottom of the fixing plate, a driving gear that meshes with the driven gear is fixedly sleeved on the outer side of the first adjusting rod, and the bottom of the first adjusting rod extends to the bottom of the main storage frame and the side storage frame and is rotatably connected to the inner side of the main storage frame and the side storage frame.

[0011] As a preferred embodiment of the present invention, a fixing tube is fixedly installed at the bottom of both the main storage frame and the side storage frame. A rotating rod is threaded into the bottom of the fixing tube. A rotating sleeve is fixedly sleeved on the outside of the rotating rod. A protective sleeve is fixedly installed at the bottom of the rotating rod. The first adjusting rod is located inside the protective sleeve, the rotating rod, and the fixing tube. A second adjusting rod is sleeved at the bottom of the first adjusting rod and inside the fixing tube. The bottom of the second adjusting rod extends to the bottom of the protective sleeve and is fixedly installed with a vertical crossbar. A vertical extension rod is threaded into the end of the vertical crossbar away from the second adjusting rod.

[0012] As a preferred embodiment of the present invention, the top of the second adjusting rod is provided with a circular groove that matches the size of the first adjusting rod, the outer side of the first adjusting rod is uniformly provided with protruding strips, the inner side of the circular groove is uniformly provided with grooves, and the protruding strips are slidably connected to the inner side of the grooves.

[0013] As a preferred embodiment of the present invention, a fixing ring is fixedly installed at the bottom of the inner side of the protective sleeve, the second adjusting rod is movably inserted into the inner side of the fixing ring, and a limiting sleeve is fixedly sleeved on the outer side of the second adjusting rod and above the fixing ring. The limiting sleeve is located inside the protective sleeve and fits against the top of the fixing ring.

[0014] As a preferred embodiment of the present invention, the inner walls of the main storage frame and the side storage frame are fixedly installed with limiting rings sleeved on the outside of the first adjusting rod. Limiting blocks are uniformly fixedly installed on the inner side of the limiting rings, and fixing blocks are uniformly fixedly installed on the outer side of the first adjusting rod. The fixing blocks are symmetrically distributed on both sides of the limiting blocks, and a return spring is fixedly installed between the fixing blocks and the limiting blocks.

[0015] A method for targeted and automated application of granular pesticides to corn includes the following steps:

[0016] S1: Use external screws to install the device at the rear or front of the self-propelled elevated field management vehicle through the threaded mounting slot on the mounting plate, and pour granular fertilizer into the main storage box and the side storage box through the feed port.

[0017] S2: Start the self-propelled elevated field management vehicle and move forward with the entire device. The drive wheels of the self-propelled elevated field management vehicle travel between the two rows of corn, so that the main storage box is located directly above the middle row of corn.

[0018] S3: Rotate the knob to rotate the rotating rod and adjust the distance between the main storage box and the side storage box so that the side storage box is directly above the corn on both sides;

[0019] S4: Rotate the rotating sleeve to drive the rotating rod to rotate. Adjust the distance between the vertical crossbar and the main storage frame and the side storage frame according to the actual height of the corn. At the same time, rotate the vertical extension rod so that the side of the vertical extension rod away from the vertical crossbar is attached to the bottom of the corn stalk diameter.

[0020] S5: As the self-propelled elevated field management vehicle carries the entire device forward, the vertical extension rod rotates due to the limitation of the corn stalk diameter. This rotates the second and first adjusting rods, connecting the second and first connecting slots on the second pair of connecting pipes. At this point, the granular pesticide falls from the discharge port along the inner sides of the first and second pair of connecting pipes. Simultaneously, as the corn stalk diameter contacts the vertical extension rod, the discharge port is positioned directly above the corn, ensuring the granular pesticide accurately falls into the large flared opening of the corn, achieving targeted and automatic application of the granular pesticide. S6: As the self-propelled elevated field management vehicle continues to move forward with the entire device, the vertical extension rod gradually detaches from the bottom of the corn stalk diameter and returns to its original position under the action of the return spring. This allows it to continue contacting the bottom of the next corn stalk diameter, enabling continuous operation.

[0021] Compared with the prior art, the present invention provides a corn granule pesticide targeted application device and method, which has the following beneficial effects:

[0022] 1. The corn granule pesticide targeted application device and method, through the second docking groove on the second pair of connecting pipes connected to the first docking groove, the granule pesticide will fall from the discharge port along the inner side of the first pair of connecting pipes and the second pair of connecting pipes. At the same time, during the process of the corn stalk contacting the vertical extension rod, the discharge port is exactly located in the range directly above the corn. In this way, the granule pesticide will accurately fall into the large funnel mouth of the corn, realizing the targeted automatic application of corn granule pesticide.

[0023] 2. This corn granule pesticide targeted application device and method involves pushing the vertical plate away from the knob, compressing and stretching the spring, causing the insertion rod to disengage from the insertion hole. Rotating the knob then drives the rotating rod to rotate, which in turn causes the rotating gear to move the toothed plate, allowing the extension frame to slide within the main storage frame. This adjusts the distance between the main storage frame and the side storage frame, ensuring that the discharge ports at the bottom of both the main and side storage frames are directly above the corn, facilitating precise application of the granule pesticide. Furthermore, the device can adapt to different field spacing for corn planting, improving its applicability.

[0024] 3. In this corn granule pesticide targeted application device and method, when the first adjusting rod rotates, the fixed block and the limiting block will move relative to each other, which will cause the return spring to be stretched or compressed. After the vertical extension rod is separated from the corn stalk diameter, under the action of the return spring, the fixed block will drive the first adjusting rod to return to its original position, so as to facilitate the vertical extension rod to contact the next corn stalk diameter. In this way, the device can be continuously and repeatedly operated to realize the continuous automatic targeted application of corn granule pesticide. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the present invention;

[0026] Figure 2 For the present invention Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0027] Figure 3 This is a cross-sectional view of the internal structure of the protective sleeve of the present invention;

[0028] Figure 4 For the present invention Figure 3 Enlarged schematic diagram of the structure at point B;

[0029] Figure 5 This is a cross-sectional view of the internal structure of the main storage frame of the present invention;

[0030] Figure 6 For the present invention Figure 5 Enlarged schematic diagram of the structure at point C;

[0031] Figure 7 This is a schematic diagram of the internal structure of the limiting ring of the present invention;

[0032] Figure 8 This is a schematic diagram of the structure near the second connector of the present invention.

[0033] In the diagram: 1. Main storage frame; 2. Side storage frame; 3. Cover; 4. Fixing tube; 41. Rotating rod; 42. Rotating sleeve; 5. Mounting plate; 6. Extension frame; 61. Toothed plate; 62. Horizontal groove; 7. Second adjusting rod; 71. Limiting sleeve; 72. Circular groove; 73. Groove; 8. Protective sleeve; 81. Fixing ring sleeve; 9. Vertical crossbar; 10. Vertical extension rod; 11. First adjusting rod; 1101. Protruding strip; 1102. Drive gear; 1103. Limiting ring; 1104. Limiting block; 1105. Fixing block; 1106. Return spring; 12. Rotating rod; 1201. Knob; 1202. Insertion hole; 1203. Rotating gear; 13. Drainage frame; 1301. Guide tube; 1302. Connecting tube; 1303. First connecting pipe; 1304. First docking groove; 14. Second connecting pipe; 1401. Driven gear; 1402. Second docking groove; 15. Fixing plate; 16. Fixing base; 1601. Vertical plate; 1602. Insertion rod; 1603. Tension spring. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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.

[0035] Please see Figure 1-8In this embodiment: a corn granular pesticide targeted application device includes a main storage frame 1 for storing granular pesticide. Side storage frames 2 are provided on both the left and right sides of the main storage frame 1 via extension mechanisms. The extension mechanism includes an extension frame 6 slidably inserted into the side of the main storage frame 1 and a rotating rod 12 rotatably inserted into the inner side of the main storage frame 1. The side of the extension frame 6 away from the main storage frame 1 is fixedly connected to the side storage frame 2. Evenly distributed toothed plates 61 are fixedly installed on the inner side of the extension frame 6. A rotating gear 1203 meshing with the toothed plates 61 is fixedly sleeved on the outer side of the rotating rod 12. The top of the rotating rod 12 extends above the main storage frame 1 and is fixedly installed with a knob 1201. Symmetrically distributed... The bottom end of the rotating rod 12 passes through the horizontal groove 62 and is rotatably connected to the bottom of the inner side of the main storage frame 1. This pushes the vertical plate 1601 away from the knob 1201, compresses the tension spring 1603, and causes the insertion rod 1602 to disengage from the insertion hole 1202. In this way, the knob 1201 can be rotated to drive the rotating rod 12 to rotate, which in turn causes the rotating gear 1203 to drive the toothed plate 61 to move, so that the extension frame 6 slides in the main storage frame 1, thereby adjusting the distance between the main storage frame 1 and the side storage frame 2. In this way, the discharge ports at the bottom of the main storage frame 1 and the side storage frame 2 are located directly above the corn, which facilitates the precise application of granular pesticides. At the same time, it also makes the device adaptable to corn planting with different field spacing, improving the applicability of the device.

[0036] In a preferred embodiment, both the main storage frame 1 and the side storage frame 2 have a feed inlet at the top, and a cover 3 is snapped into the inside of the feed inlet. Both the main storage frame 1 and the side storage frame 2 have a discharge outlet at the bottom. An installation plate 5 is fixedly installed on the front of the main storage frame 1. Threaded mounting grooves are evenly provided on the outer side of the installation plate 5. The device is installed at the rear or front of the self-propelled elevated field management vehicle using external screws through the threaded mounting grooves on the installation plate 5.

[0037] In a preferred embodiment, a fixed base 16 is fixedly installed on the top of the main storage frame 1 and on the side of the knob 1201. A vertical plate 1601 is slidably connected to the inner side of the fixed base 16. An insertion rod 1602 is fixedly installed on the side of the vertical plate 1601 near the knob 1201. Insertion holes 1202 that match the size and position of the insertion rod 1602 are evenly opened on the outer side of the knob 1201. A tension spring 1603 is fixedly installed between the side of the vertical plate 1601 away from the insertion rod 1602 and the inner side of the fixed base 16. After the distance between the main storage frame 1 and the side storage frame 2 is adjusted, the vertical plate 1601 is released. The vertical plate 1601 is reset under the action of the tension spring 1603, so that the insertion rod 1602 is inserted into the insertion hole 1202 again. In this way, the knob 1201 and the rotating rod 12 can be fixed, thereby improving the stability of the main storage frame 1 and the side storage frame 2 during the application process.

[0038] In a preferred embodiment, a flow guide 13 is fixedly installed on the inner side of both the main storage frame 1 and the side storage frame 2. The flow guide 13 has a tapered design, and a guide tube 1301 is fixedly installed at the bottom of the flow guide 13. A connecting tube 1302 is fixedly installed at the bottom of the guide tube 1301, and a first pair of connecting tubes 1303 is fixedly installed at the bottom end of the connecting tube 1302. A first docking groove 1304 is formed on the inner side of the first pair of connecting tubes 1303. A second pair of connecting tubes 14 is rotatably connected to the bottom of the inner side of the main storage frame 1 and the side storage frame 2, and is docked with the outlet position. A second docking groove 1402 matching the size of the first docking groove 1304 is formed on the inner side of the second pair of connecting tubes 14. The receiving groove 1304, guide tube 1301, and connecting tube 1302 are interconnected. The second connecting groove 1402 is interconnected with the discharge port. The first pair of connecting tubes 1303 and the second pair of connecting tubes 14 are fitted together. By rotating the second pair of connecting tubes 14, the second connecting groove 1402 is aligned with the first connecting groove 1304. In this way, the granular pesticides located in the main storage frame 1 and the side storage frame 2 can fall into the second connecting groove 1402 through the guide tube 1301, connecting tube 1302, and the first pair of connecting tubes 1303, and then fall from the discharge port to complete the application. In addition, the synchronous operation of the main storage frame 1 and the side storage frame 2 can simultaneously complete the application of pesticides to multiple rows of corn, improving the application efficiency.

[0039] In a preferred embodiment, a driven gear 1401 is fixedly sleeved on the outer side of the second coupling tube 14. A fixing plate 15 is fixedly installed on the inner side of the main storage frame 1 and the side storage frame 2. A first adjusting rod 11 is rotatably connected to the bottom of the fixing plate 15. A drive gear 1102 that meshes with the driven gear 1401 is fixedly sleeved on the outer side of the first adjusting rod 11. The bottom of the first adjusting rod 11 extends to the bottom of the main storage frame 1 and the side storage frame 2 and is rotatably connected to the inner side of the main storage frame 1 and the side storage frame 2. The rotation of the first adjusting rod 11 will drive the drive gear 1102 to rotate, thereby causing the driven gear 1401 to rotate, which in turn drives the second docking groove 1402 to rotate, completing the alignment of the second docking groove 1402 with the first docking groove 1304.

[0040] In a preferred embodiment, a fixing tube 4 is fixedly installed at the bottom of both the main storage frame 1 and the side storage frame 2. A rotating rod 41 is threaded into the bottom of the fixing tube 4, and a rotating sleeve 42 is fixedly sleeved on the outside of the rotating rod 41. A protective sleeve 8 is fixedly installed at the bottom of the rotating rod 41. A first adjusting rod 11 is located inside the protective sleeve 8, the rotating rod 41, and the fixing tube 4. A second adjusting rod 7 is sleeved at the bottom of the first adjusting rod 11 and inside the fixing tube 4. The bottom of the second adjusting rod 7 extends to the bottom of the protective sleeve 8 and is fixedly installed with a vertical crossbar 9. A vertical extension rod 10 is threaded into the end of the vertical crossbar 9 away from the second adjusting rod 7. The vertical extension rod 10 contacts the bottom of the corn stalk diameter. As the device moves forward, the fixing tube 4 and the protective sleeve 8 also move forward. Thus, the vertical extension rod 10 and the vertical crossbar 9 will rotate under the restriction of the corn stalk diameter, which can drive the second adjusting rod 7 and the first adjusting rod 11 to rotate synchronously, thereby achieving the effect of automatic pesticide application.

[0041] In a preferred embodiment, the top of the second adjusting rod 7 has a circular groove 72 that matches the size of the first adjusting rod 11. The outer side of the first adjusting rod 11 is uniformly fitted with protrusions 1101, and the inner side of the circular groove 72 has uniformly fitted grooves 73. The protrusions 1101 are slidably connected to the inner side of the grooves 73. When adjusting the height of the vertical crossbar 9, rotating the rotating sleeve 42 causes the rotating rod 41 to rotate and enter the fixed tube 4. Simultaneously, the first adjusting rod 11 slides within the second adjusting rod 7, smoothly adjusting the distance between the vertical crossbar 9 and the bottom of the main storage frame 1 and the side storage frame 2. This adjustment positions the discharge port directly above the corn's large flared opening, while the vertical extension rod 10 fits against the bottom of the corn stalk. This allows the device to be applied automatically to corn of different heights using targeted granular pesticide application. The bottom of the corn stalk is relatively hard and not easily damaged, and the friction from the vertical extension rod 10 will not cause damage. Furthermore, a protective rubber sleeve is fitted over the vertical extension rod 10 to more effectively protect the corn stalk.

[0042] In a preferred embodiment, a fixing ring 81 is fixedly installed at the bottom of the inner side of the protective sleeve 8. The second adjusting rod 7 is movably inserted into the inner side of the fixing ring 81. A limiting sleeve 71 is fixedly sleeved on the outer side of the second adjusting rod 7 and above the fixing ring 81. The limiting sleeve 71 is located inside the protective sleeve 8 and fits against the top of the fixing ring 81. The fit between the fixing ring 81 and the limiting sleeve 71 allows the protective sleeve 8 to smoothly slide the second adjusting rod 7 on the outer side of the first adjusting rod 11 through the fixing ring 81 during the rotation of the rotating rod 41.

[0043] In a preferred embodiment, a limiting ring 1103 fitted onto the inner wall of the main storage frame 1 and the side storage frame 2 is fixedly installed. A limiting block 1104 is uniformly fixedly installed on the inner side of the limiting ring 1103. A fixing block 1105 is uniformly fixedly installed on the outer side of the first adjusting rod 11. The fixing blocks 1105 are symmetrically distributed on both sides of the limiting block 1104, and a return spring 1106 is fixedly installed between the fixing block 1105 and the limiting block 1104. When the first adjusting rod 11 rotates, the fixing block 1105 and the limiting block 1104 will move relative to each other, thereby causing the return spring 1106 to be stretched or compressed. After the vertical extension rod 10 is separated from the corn stalk diameter, under the action of the return spring 1106, the fixing block 1105 will drive the first adjusting rod 11 to return to its original position, so as to facilitate the contact of the vertical extension rod 10 with the next corn stalk diameter. In this way, the device can be continuously and repeatedly operated to realize the continuous automatic application of corn granule pesticide.

[0044] A method for targeted automatic application of corn granular pesticide includes the following steps: SI: Using external screws, the device is installed at the rear or front of a self-propelled elevated field management vehicle through the threaded mounting groove on the mounting plate 5, and granular fertilizer is poured into the main storage frame 1 and the side storage frame 2 through the feed inlet.

[0045] S2: Start the self-propelled elevated field management vehicle and move forward with the entire device. The drive wheels of the self-propelled elevated field management vehicle travel between the two rows of corn, so that the main storage box 1 is directly above the middle row of corn; S3: Turn the knob 1201 to drive the rotating rod 12 to rotate, adjust the distance between the main storage box 1 and the side storage box 2, so that the side storage box 2 is directly above the two rows of corn.

[0046] S4: Rotate the rotating sleeve 42 to drive the rotating rod 41 to rotate. Adjust the distance between the vertical crossbar 9 and the main storage box 1 and the side storage box 2 according to the actual height of the corn. At the same time, rotate the vertical extension rod 10 so that the side of the vertical extension rod 10 away from the vertical crossbar 9 is attached to the bottom of the corn stalk diameter.

[0047] S5: As the self-propelled elevated field management vehicle moves forward with the entire device, the vertical extension rod 10 will rotate under the restriction of the corn stalk diameter. This will drive the second adjusting rod 7 and the first adjusting rod 11 to rotate, thereby connecting the second docking groove 1402 on the second pair of connecting pipes 14 with the first docking groove 1304. At this time, the granular pesticide will fall from the discharge port along the inner side of the first pair of connecting pipes 1303 and the second pair of connecting pipes 14. At the same time, during the contact between the corn stalk diameter and the vertical extension rod 10, the discharge port is located directly above the corn. Thus, the granular pesticide will accurately fall into the large funnel mouth of the corn, realizing the targeted automatic application of corn granular pesticide.

[0048] S6: As the self-propelled elevated field management vehicle continues to move forward with the entire device, the vertical extension rod 10 will gradually detach from the bottom of the corn stalk and return to its original state under the action of the return spring 1106, thus continuing to contact the bottom of the stalk of the next corn, achieving continuous operation.

[0049] Working principle: The device is installed at the rear or front of a self-propelled elevated field management vehicle. Pour granular pesticide into the main storage frame 1 and the side storage frame 2. Adjustments are made by rotating knob 1201 and rotating sleeve 42 so that the discharge ports at the bottom of the main storage frame 1 and the side storage frame 2 are on the same vertical plane as the corn's large flared opening, and the discharge ports are positioned above the corn. Simultaneously, the vertical extension rod 10 is attached to the bottom of the corn stalk. As the self-propelled elevated field management vehicle moves forward, the vertical extension rod 10 rotates due to the constraint of the corn stalk diameter. This rotates the second adjusting rod 7 and the first adjusting rod 11, thereby causing the second adjusting rod 7 to rotate. The second docking groove 1402 on the second pair of connecting pipes 14 is connected to the first docking groove 1304. At this time, the granular pesticide will fall from the discharge port along the inner side of the first pair of connecting pipes 1303 and the second pair of connecting pipes 14. At the same time, during the process of the corn stalk contacting the vertical extension rod 10, the discharge port is located directly above the corn. In this way, the granular pesticide will accurately fall into the large funnel mouth of the corn, realizing the targeted automatic application of corn granular pesticide. Subsequently, the vertical extension rod 10 will gradually detach from the bottom of the corn stalk and return to its original state under the action of the return spring 1106. In this way, it will continue to contact the bottom of the stalk of the next corn, realizing continuous operation.

[0050] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A corn granule pesticide targeted automatic application device, comprising a main storage frame (1) for storing granule pesticides, characterized in that: The main storage frame (1) has side storage frames (2) on both the left and right sides via extension mechanisms. The extension mechanism includes an extension frame (6) slidably inserted into the side of the main storage frame (1) and a rotating rod (12) rotatably inserted into the inner side of the main storage frame (1). The side of the extension frame (6) away from the main storage frame (1) is fixedly connected to the side storage frame (2). The inner side of the extension frame (6) is fixedly installed with evenly distributed toothed plates (61). The outer side of the rotating rod (12) is fixedly sleeved with a rotating gear (1203) that meshes with the toothed plates (61). The top of the rotating rod (12) extends to the top of the main storage frame (1) and is fixedly installed with a knob (1201). The top and bottom of the extension frame (6) are open A symmetrically distributed transverse groove (62) is provided. The bottom end of the rotating rod (12) passes through the transverse groove (62) and is rotatably connected to the bottom of the inner side of the main storage frame (1). The top of the main storage frame (1) and the side storage frame (2) are provided with inlets. The inner side of the inlets is fitted with a cover (3). The bottom of the main storage frame (1) and the side storage frame (2) are provided with outlets. The inner side of the main storage frame (1) and the side storage frame (2) are fixedly installed with a flow guide (13). The flow guide (13) is tapered. The bottom of the flow guide (13) is fixedly installed with a guide tube (1301). The bottom of the guide tube (1301) is fixedly installed with a connecting tube (1302). 2) The bottom end is fixedly installed with a first pair of connecting pipes (1303). The inner side of the first pair of connecting pipes (1303) is provided with a first docking groove (1304). The bottom of the inner side of the main storage frame (1) and the side storage frame (2) is rotatably connected with a second pair of connecting pipes (14) that docks with the outlet position. The inner side of the second pair of connecting pipes (14) is provided with a second docking groove (1402) that matches the size of the first docking groove (1304). The first docking groove (1304), the guide pipe (1301) and the connecting pipe (1302) are interconnected. The second docking groove (1402) is interconnected with the outlet. The first pair of connecting pipes (1303) and the second pair of connecting pipes (14) fit together. (14) is fixedly sleeved with a driven gear (1401) on the outside. The inner sides of the main storage frame (1) and the side storage frame (2) are fixedly installed with a fixing plate (15). The bottom of the fixing plate (15) is rotatably connected with a first adjusting rod (11). The outer side of the first adjusting rod (11) is fixedly sleeved with a driving gear (1102) that meshes with the driven gear (1401). The bottom of the first adjusting rod (11) extends to the bottom of the main storage frame (1) and the side storage frame (2) and is rotatably connected to the inner side of the main storage frame (1) and the side storage frame (2). The bottom end of the first adjusting rod (11) is sleeved with a second adjusting rod (7). The bottom of the second adjusting rod (7) is fixedly installed with a vertical crossbar (9).A vertical extension rod (10) is threadedly inserted into the end of the vertical crossbar (9) away from the second adjusting rod (7). A limiting ring (1103) fitted onto the inner wall of the main storage frame (1) and the side storage frame (2) is fixedly installed, sleeved on the outside of the first adjusting rod (11). Limiting blocks (1104) are uniformly fixedly installed on the inner side of the limiting ring (1103). Fixing blocks (1105) are uniformly fixedly installed on the outer side of the first adjusting rod (11). The fixing blocks (1105) are symmetrically distributed on both sides of the limiting blocks (1104), and a return spring (1106) is fixedly installed between the fixing blocks (1105) and the limiting blocks (1104).

2. The automatic targeted application device for corn granule pesticides according to claim 1, characterized in that: The main storage frame (1) is fixedly mounted with a mounting plate (5), and the mounting plate (5) has threaded mounting grooves evenly opened on the outer side.

3. The automatic targeted application device for corn granule pesticides according to claim 1, characterized in that: A fixed base (16) is fixedly installed on the top of the main storage box (1) and on the side of the knob (1201). A vertical plate (1601) is slidably connected to the inner side of the fixed base (16). A plug rod (1602) is fixedly installed on the side of the vertical plate (1601) near the knob (1201). The outer side of the knob (1201) is evenly provided with plug holes (1202) that match the size and position of the plug rod (1602). A tension spring (1603) is fixedly installed between the side of the vertical plate (1601) away from the plug rod (1602) and the inner side of the fixed base (16).

4. The automatic targeted application device for corn granule pesticides according to claim 2, characterized in that: The bottom of the main storage frame (1) and the side storage frame (2) are both fixedly installed with a fixing tube (4). The second adjusting rod (7) is located inside the fixing tube (4). The bottom of the fixing tube (4) is threaded with a rotating rod (41). The outside of the rotating rod (41) is fixedly sleeved with a rotating sleeve (42). The bottom of the rotating rod (41) is fixedly installed with a protective sleeve (8). The bottom of the second adjusting rod (7) extends to the bottom of the protective sleeve (8). The first adjusting rod (11) is located inside the protective sleeve (8), the rotating rod (41) and the fixing tube (4).

5. The automatic targeted application device for corn granule pesticides according to claim 4, characterized in that: The top of the second adjusting rod (7) is provided with a circular groove (72) that matches the size of the first adjusting rod (11). The outer side of the first adjusting rod (11) is uniformly provided with a protrusion (1101). The inner side of the circular groove (72) is uniformly provided with a groove (73). The protrusion (1101) is slidably connected to the inner side of the groove (73).

6. The automatic targeted application device for corn granular pesticides according to claim 4, characterized in that: A fixing ring (81) is fixedly installed at the bottom of the inner side of the protective sleeve (8). The second adjusting rod (7) is movably inserted into the inner side of the fixing ring (81). A limiting sleeve (71) is fixedly sleeved on the outer side of the second adjusting rod (7) and above the fixing ring (81). The limiting sleeve (71) is located inside the protective sleeve (8) and fits against the top of the fixing ring (81).

7. A method for targeted automatic application of corn granular pesticides, using the device described in any one of claims 4-6, characterized in that, Includes the following steps: SI: Use external screws to install the device at the rear or front of the self-propelled elevated field management vehicle through the threaded mounting slot on the mounting plate (5), and pour granular fertilizer into the main storage box (1) and the side storage box (2) through the feed inlet; S2: Start the self-propelled elevated field management vehicle and move forward with the whole device. The drive wheels of the self-propelled elevated field management vehicle travel between the two rows of corn, so that the main storage box (1) is located directly above the middle row of corn. S3: Rotate the knob (1201) to drive the rotating rod (12) to rotate, adjust the distance between the main storage box (1) and the side storage box (2) so that the side storage box (2) is located directly above the corn on both sides; S4: Rotate the rotating sleeve (42) to drive the rotating rod (41) to rotate. Adjust the distance between the vertical crossbar (9) and the main storage box (1) and the side storage box (2) according to the actual height of the corn. At the same time, rotate the vertical extension rod (10) so that the side of the vertical extension rod (10) away from the vertical crossbar (9) is attached to the bottom of the corn stalk diameter. S5: As the self-propelled elevated field management vehicle moves forward with the entire device, the vertical extension rod (10) will rotate under the restriction of the corn stalk diameter. This will drive the second adjustment rod (7) and the first adjustment rod (11) to rotate, thereby making the second docking groove (1402) on the second pair of connecting pipes (14) connect with the first docking groove (1304). At this time, the granular pesticide will fall from the discharge port along the inner side of the first pair of connecting pipes (1303) and the second pair of connecting pipes (14). At the same time, during the process of the corn stalk diameter contacting the vertical extension rod (10), the discharge port is located directly above the corn. Thus, the granular pesticide will accurately fall into the large funnel mouth of the corn, realizing the targeted automatic application of corn granular pesticide. S6: As the self-propelled elevated field management vehicle continues to move forward with the entire device, the vertical extension rod (10) will gradually detach from the bottom of the corn stalk and return to its original state under the action of the return spring (1106), so that it will continue to contact the bottom of the stalk of the next corn, thus achieving continuous operation.

Images