Directional supply and pesticide application system for high plant pests and use method of directional supply and pesticide application system

Abstract

The invention provides a high plant insect pest directional supply pesticide application system and a use method thereof.The system comprises a telescopic rod, an openable grab bucket assembly is arranged at the top end of the telescopic rod, a material ejection mechanism is arranged in a grab bucket to eject pesticide, a line wheel assembly and a lever handle are arranged on a holding part at the lower end of the telescopic rod, and the grab bucket is controlled to be opened and closed through linkage of a rigid rope; a conveying mechanism is integrated on the side of the telescopic rod and comprises a conveying pipeline arranged along a rod body and a power control assembly of a holding part, and the power control assembly is connected with an external water source and a liquid and powdery medicament storage tank through a selection valve and conveys materials to a grab bucket cavity through a diaphragm pump; the using method comprises four modes of medicament bag putting, bulk material bouncing, liquid spraying and pipeline cleaning. The problems of difficulty in drug delivery, insufficient instrument flexibility and difficulty in implementation of high-altitude operation in pest control of tall and big forest trees are solved.

Description

Technical Field

[0001] This invention relates to the field of forest pest control technology, and in particular to a targeted pesticide application system for tall trees and its application method. Background Technology

[0002] Palm trees are an important component of urban greening and the floriculture industry in my country. In recent years, the red palm weevil has spread rapidly in southern China, posing a serious threat and causing significant losses to the palm industry. The red palm weevil, belonging to the family Cerciidae in the order Coleoptera, is also known as the coconut palm weevil. It is a quarantine pest in forestry, with its larvae boring into the trunk, petioles, and rhizomes of the host plant. This insect's damage is insidious; it often enters through the growing point, creating tunnels that cause rot and plant death. Early detection is difficult, and later damage is irreversible. It can cause damage year-round. Currently, there is a lack of mature application methods for controlling the red palm weevil. Traditional chemical pesticide spraying is mainly used, but this method has prominent problems: the pressure of the spraying equipment is insufficient for tall palm trees, resulting in poor spraying effect; inconvenient transportation in rural areas and courtyards makes it difficult for large spraying equipment to enter and prevents high-altitude operations; the larvae bore into the trunk, making it difficult for pesticides to reach them, requiring 5-6 consecutive sprays to completely kill them, and the cost is high and the environment is polluting; the injection of pesticides into tall trees requires a large amount, and drilling damages the tree and affects its appearance; spraying often uses highly toxic and persistent pesticides with poor systemic absorption, making it difficult to reach the insects and polluting the environment; and equipment such as plant protection drones are expensive and difficult to use in daily life.

[0003] Therefore, there is an urgent need for a pesticide application system and method that is simple to operate, easy to maintain, and easy to promote and popularize at the grassroots level. Summary of the Invention

[0004] The main objective of this invention is to provide a targeted pesticide application system for tall trees and its application method, which solves the problems of difficult pesticide application for tall trees and low operational flexibility of the pesticide application device.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a targeted supply and application system for tall plant pests, wherein a grab bucket assembly is provided at the top of the telescopic rod, the grab bucket assembly includes a lower grab bucket fixedly installed at the top of the telescopic rod, an upper grab bucket rotatably connected to the rear end of the lower grab bucket, and a material ejection mechanism, which is used to eject the material in the lower grab bucket cavity when the grab bucket assembly is opened. The lower end of the telescopic rod is equipped with a gripping part, on which a reel assembly and a handle are provided. One end of the rigid rope is fixed to the reel assembly, and the other end is connected to the transmission part of the upper grab bucket in linkage. After that, it is connected to the handle through the guide assembly. The handle drives the upper grab bucket to open relative to the lower grab bucket through the rigid rope. A conveying mechanism is provided on one side of the telescopic rod. The conveying mechanism includes a conveying pipe arranged along the length of the telescopic rod and a power control component located on the gripping part. One end of the conveying pipe extends into the lower grab bucket cavity, and the other end is connected to the power control component. The power control component is connected to an external storage device and can selectively convey materials in the external storage device to the grab bucket component.

[0006] In the preferred embodiment, the upper grab bucket is provided with a first fork and a second fork spaced apart at the rear end. The second fork is connected to the top of the telescopic rod through a first elastic element. The first elastic element drives the upper grab bucket to rotate and cover the lower grab bucket. The end of the first fork is rotatably connected to the first pulley, and the rotation axis of the first pulley is parallel to the rotation axis of the upper grab bucket; The rigid rope is connected to the transmission part of the upper grab bucket through the first pulley at the end of the second fork.

[0007] In the preferred embodiment, the lower half of the rear end of the lower grab bucket is fixedly connected to the top of the telescopic boom; The material ejection mechanism includes an elastic membrane located in the upper half of the rear end of the lower grab bucket, and an impact hammer located at the rear end of the upper grab bucket corresponding to the position of the elastic membrane. When the upper grab bucket rotates and opens to a specific angle relative to the lower grab bucket, the impact hammer strikes the elastic membrane, causing the material in the lower grab bucket cavity to eject from the grab bucket assembly.

[0008] In the preferred embodiment, the guide assembly includes a guide wheel and a first guide bracket, with the guide wheel located at the top of the telescopic rod near the grab bucket assembly; The guide wheel is set radially away from the telescopic rod via the first guide bracket, so that the lower end of the guide wheel is higher than the same side end of the telescopic rod's maximum outer diameter shaft section; The spool assembly includes a winding spool and a second guide bracket, with the winding spool positioned at the top of the grip via the second guide bracket; The guide bracket has a first guide hole that extends axially through the middle, and a rigid rope is threaded through the first guide hole.

[0009] In the preferred embodiment, the height of the lower end of the guide wheel is equal to the height of the first guide hole; The height of the end of the first shift fork is greater than the height of the lower end of the guide wheel and the height of the first guide hole.

[0010] In the preferred embodiment, one end of the winding reel's shaft extends out of the second guide bracket and is fixedly connected to the throttle handle; The winding wheel is coaxially equipped with a ratchet. One end of the ratchet pawl is rotatably connected to the side wall of the second guide bracket. One end of the second elastic element is fixed to the side wall of the second guide bracket, and the other end is connected to the free end of the ratchet pawl. The free end of the ratchet pawl is driven to engage in the ratchet tooth groove to limit the rotation of the winding wheel.

[0011] In the preferred embodiment, a handle is provided in the middle of the grip portion, the middle of the handle is rotatably connected to the outer shell of the grip portion, one end extends into the inner cavity of the grip portion, and the other end extends towards the bottom of the grip portion; The second pulley at the top of the part where the hand is inserted into the inner cavity of the grip is rotated and connected. The rigid rope passes through the second guide hole at the top of the grip, goes around the second pulley, and its end is fixed to the rear side of the inner wall of the grip.

[0012] The grip section is also provided with a third elastic element. One end of the third elastic element is fixed to one side of the second pulley of the handle, and the other end is fixed to the rear side of the inner wall of the grip section, driving the part of the handle inside the grip section to rotate towards the rear end of the grip section.

[0013] In the preferred embodiment, multiple sleeves are coaxially connected along the same axis to form a telescopic rod. Each level of sleeve is a hollow structure, and the outer diameter of the inner sleeve in adjacent sleeves is matched with the inner diameter of the outer sleeve. The top end of the sleeve is provided with a constricted part, and the bottom end is provided with an annular limiting boss. The inner diameter of the constricted part is adapted to the outer diameter of the next-level inner sleeve, and the outer diameter of the annular limiting boss is adapted to the inner diameter of the previous-level outer sleeve. Through the snap-fit ​​cooperation between the constricted part and the annular limiting boss, an axially limiting telescopic structure is formed. A guide ring is provided on one side of the top of the sleeve to fix the delivery pipeline.

[0014] In the preferred embodiment, the power control components include a diaphragm pump and a selector valve; The selector valve is configured with three independent inlets and one outlet. The three independent inlets are respectively connected to an external water source, a liquid chemical storage device, and a powder chemical storage device through pipelines. Only one inlet and one outlet are open at a time to prevent material from flowing back from the outlet to any inlet, thus avoiding material backflow and contamination of the external storage device. The inlet of the diaphragm pump is connected to the outlet of the selector valve via a pipeline, and its outlet is connected to the beginning of the delivery pipeline.

[0015] In a preferred embodiment, a method for using a targeted pesticide application system for tall plant pests includes: A1. Medicine Packet Dropping Mode: Without using a conveyor mechanism, the medicine pack is placed directly into the grab bucket assembly. After being moved to the target height via the telescopic rod, the grab bucket assembly is opened by operating the handle to drop the medicine pack to the target position. A2. Material conveying mode: After the telescopic rod extends to the target height, the conveying mechanism is connected to the corresponding external storage device. The required material type is selected through the power control component and pumped into the lower grab bucket cavity through the conveying pipeline. The grab bucket assembly is operated to open and close, and the material ejection mechanism ejects the material accumulated in the cavity to the target position. A3. Liquid jet mode: When conveying liquid medicine or water, the telescopic rod extends to the target height, the grab bucket assembly opens, and the liquid material is directly sprayed to the target position through the conveying pipeline by controlling the pumping pressure of the diaphragm pump. A4. Pipeline cleaning mode: After completing the chemical delivery, switch the selector valve to the external water source inlet, and pump clean water through the diaphragm pump, the delivery pipeline, and the lower grab bucket cavity for cleaning.

[0016] This invention provides a targeted pesticide application system for tall trees infested with insects and its application method. Through a telescopic structure, a controllable grab bucket assembly, and a stable traction locking mechanism, it achieves precise and targeted pesticide application to insect-infested areas of tall trees. The telescopic rod employs a multi-stage nested sleeve design, combined with an axial limiting structure, which reduces overall weight while ensuring stable support for high-altitude operations, allowing the operator to reach the target location in the tree canopy from the ground. The grab bucket assembly integrates a material ejection mechanism. The mechanical linkage triggered by the rotation of the upper grab bucket triggers an impact hammer to strike an elastic membrane, generating instantaneous ejection force. This effectively solves the problem of powdered, granular, or blocky pesticides easily sticking together, ensuring that the pesticide completely detaches from the grab bucket and accurately covers the infested areas.

[0017] The wired control mechanism employs a combination of a moving pulley principle and a ratchet locking design, significantly reducing operational effort and achieving reliable locking of the telescopic length. The optimized spatial layout of the guide components avoids frictional interference between the rope and the telescopic rod, ensuring efficient force transmission and sensitive opening and closing response of the grab bucket. The integrated delivery mechanism, through a combination of a diaphragm pump and a multi-channel selector valve, is compatible with on-demand supply of liquid pesticides, powders, and water, and features anti-backflow functionality to prevent cross-contamination. The system supports four operating modes: targeted pesticide delivery, powder spraying, liquid injection, and pipeline cleaning. These modes can be flexibly switched according to pest type, pesticide form, and environmental requirements, significantly improving application adaptability.

[0018] The overall structure balances portability and functionality, requiring no external power supply or heavy machinery, making it particularly suitable for rural courtyards, forest areas, and other locations with limited access. A self-cleaning pipeline mechanism effectively extends the equipment's lifespan and reduces maintenance costs. The device is easy to operate; a single person can handle the entire process from pesticide delivery and height adjustment to precise application, significantly reducing the intensity of high-altitude spraying operations and providing an efficient and low-cost solution for pest control in tall trees such as palms. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a front view structural diagram of the overall appearance of the present invention; Figure 2 This is a side view of the overall appearance of the present invention; Figure 3This is a rear view structural diagram of the grab bucket assembly of the present invention; Figure 4 This is a front view structural diagram of the grab bucket assembly of the present invention; Figure 5 This is a side view of the reel assembly of the present invention; Figure 6 This is a structural diagram of the ratchet locking mechanism of the reel assembly of the present invention; Figure 7 This is a structural diagram of the telescopic rod of the present invention; Figure 8 This is a cross-sectional view of the telescopic rod of the present invention; Figure 9 This is a structural diagram of the conveying mechanism of the present invention; Figure 10 This is a cross-sectional view of the gripping part of the present invention.

[0020] In the figure: Telescopic rod 1; Sleeve 101; Narrowing part 1011; Annular limiting boss 1012; Guide ring 1013; Grab bucket assembly 2; Upper grab bucket 201; First shift fork 2011; Second shift fork 2012; Impact hammer 2013; Lower grab bucket 202; Elastic membrane 2021; First elastic element 3; Grip part 4; Second guide hole 401; Thread reel assembly 5; Winding reel 501; Second guide bracket 502; First guide hole 5021; Turn handle 503; Ratchet 504; Pawl 505; Second elastic element 506; Handle 6; Second pulley 601; Rigid rope 7; Guide assembly 8; Guide wheel 801; First guide bracket 802; First pulley 9; Third elastic element 10; Delivery pipeline 11; Diaphragm pump 12; Selector valve 13. Detailed Implementation

[0021] Example 1 like Figure 1-10 As shown, a targeted pesticide application system for tall plant pests is provided. The top of the telescopic rod 1 is provided with a grab bucket assembly 2. The grab bucket assembly 2 includes a lower grab bucket 202 fixedly installed at the top of the telescopic rod 1, an upper grab bucket 201 rotatably connected to the rear end of the lower grab bucket 202, and a material ejection mechanism. The material ejection mechanism is used to eject the material in the cavity of the lower grab bucket 202 when the grab bucket assembly 2 is opened. The lower end of the telescopic rod 1 is provided with a gripping part 4, and the gripping part 4 is provided with a spool assembly 5 and a handle 6. One end of the rigid rope 7 is fixed to the spool assembly 5, and the other end is linked to the transmission part of the upper grab bucket 201. After that, it is connected to the handle 6 through the guide assembly 8. The handle 6 drives the upper grab bucket 201 to open relative to the lower grab bucket 202 through the rigid rope 7. A conveying mechanism is provided on one side of the telescopic rod 1. The conveying mechanism includes a conveying pipe 11 arranged along the length of the telescopic rod 1 and a power control component provided on the gripping part 4. One end of the conveying pipe 11 extends into the cavity of the lower grab bucket 202, and the other end is connected to the power control component. The power control component is connected to an external storage device and can selectively convey the material in the external storage device to the grab bucket assembly 2.

[0022] This application utilizes a telescopic structure, a controllable grab bucket assembly, and a stable traction locking mechanism to achieve targeted pesticide application to high-altitude insect pest areas in forests, while a delivery component enables remote pesticide delivery. The telescopic pole 1, composed of multiple coaxially connected sleeves 101, is key to height adjustment, allowing the operator to reach the canopy layer of tall trees from the ground. The grab bucket assembly 2, located at the top of the telescopic pole, consists of an upper grab bucket 201 and a lower grab bucket 202, rotatably connected at their rear ends to form a clamp-like structure for grabbing and holding pesticide packets. A linkage control mechanism located at the gripping part 4 drives the remote grab bucket assembly 2 to deploy via a rigid rope 7. The delivery mechanism is tightly integrated with the telescopic structure and grab bucket mechanism to achieve remote pesticide delivery. The overall device has a compact structure, is easy to operate, and can accurately deliver pesticides to designated locations high in the tree canopy.

[0023] In the preferred embodiment, the upper grab bucket 201 is provided with a first fork 2011 and a second fork 2012 at an interval between the upper and lower ends. The second fork 2012 is connected to the top of the telescopic rod 1 through a first elastic element 3. The first elastic element 3 drives the upper grab bucket 201 to rotate and cover the lower grab bucket 202. The end of the first fork 2011 is rotatably connected to the first pulley 9, and the rotation axis of the first pulley 9 is parallel to the rotation axis of the upper grab bucket 201; The rigid rope 7 is connected to the transmission part of the upper grab bucket 201 by means of the first pulley 9 at the end of the second fork 2012.

[0024] In the preferred embodiment, the lower half of the rear end of the lower grab bucket 202 is fixedly connected to the top end of the telescopic rod 1; The material ejection mechanism includes an elastic membrane 2021 located in the upper half of the rear end of the lower grab bucket 202, and an impact hammer 2013 located at the rear end of the upper grab bucket 201 corresponding to the position of the elastic membrane 2021. When the upper grab bucket 201 rotates and opens to a specific angle relative to the lower grab bucket 202, the impact hammer 2013 strikes the elastic membrane 2021, causing the material in the cavity of the lower grab bucket 202 to eject from the grab bucket assembly 2.

[0025] When the operator drives the upper grab bucket 201 to rotate relative to the lower grab bucket 202 to a specific angle via the handle 6, the rotational kinetic energy of the upper grab bucket 201 is converted into the hammering force of the impact hammer 2013. This causes the impact hammer 2013 to strike the elastic membrane 2021 with appropriate force. The elastic membrane 2021 undergoes instantaneous elastic deformation and then rebounds rapidly, forming a strong instantaneous thrust. This precisely ejects liquid, powder, granular, or lumpy materials from the lower grab bucket 202 cavity into the grab bucket assembly 2, ensuring that the materials fall precisely into the pest-infested area of ​​tall trees. This avoids material sticking to the inner wall of the grab bucket and causing waste, while ensuring that the pesticide can directly act on the target area.

[0026] In the preferred embodiment, the guide assembly 8 includes a guide wheel 801 and a first guide bracket 802, with the guide wheel 801 located at the top of the telescopic rod 1 near the grab bucket assembly 2; The guide wheel 801 is arranged radially away from the telescopic rod 1 via the first guide bracket 802, so that the lower end of the guide wheel 801 is higher than the same side end of the maximum outer diameter shaft section of the telescopic rod 1. The spool assembly 5 includes a winding spool 501 and a second guide bracket 502. The winding spool 501 is mounted on the top of the grip portion 4 via the second guide bracket 502. The guide bracket 502 has an axially penetrating first guide hole 5021 in the middle, and the rigid rope 7 is inserted into the first guide hole 5021.

[0027] In the preferred embodiment, the height of the lower end of the guide wheel 801 is equal to the height of the first guide hole 5021; The height of the end of the first shift fork 2011 is greater than the height of the lower end of the guide wheel 801 and the height of the first guide hole 5021.

[0028] The rotation planes of the first pulley 9, winding wheel 501, and guide wheel 801 are coplanar, and this rotation plane passes through the axis of the telescopic rod 1. The first guide hole 5021 is also located on this rotation plane, ensuring a straight traction path for the rigid rope 7. When the telescopic rod 1 is fully or partially retracted, if the guide wheel 801 is not high enough, the rigid rope 7 that passes over the guide wheel 801 may come into contact with, rub against, or even become entangled with the outer wall of the thicker sleeve 101 below. This can lead to severe wear of the rigid rope 7, operational jamming, increased noise, and may affect the opening and closing angle of the grab assembly 2. By extending the guide wheel 801 outward through the first guide bracket 802 to a sufficiently high position, it is ensured that after the rigid rope 7 exits from the guide wheel 801, its path completely avoids the outer contours of all the sleeves below, forming an unobstructed cable routing channel.

[0029] With the grab bucket closed, the rigid rope 7, which passes around the first pulley 9, forms a downward-sloping path to the guide wheel 801. When the operator presses the handle 6 to pull the rigid rope 7, this inclined rigid rope 7 is straightened and tightened, transmitting the pulling force to the first fork 2011, driving the grab bucket to open. If the height of the end of the first fork 2011 is too low, this rigid rope 7 may be too short or have an improper angle, affecting the effective transmission of force and the opening and closing range of the grab bucket assembly 2. This height difference is an important geometric design to ensure traction effectiveness. The guide wheel 801 is located close to the grab bucket assembly 2, so that when the rigid rope 7 is pulled for the same length, the upper grab bucket 201 has a larger responsive rotation angle, optimizing the force transmission efficiency and reducing unnecessary force loss.

[0030] In the preferred embodiment, one end of the shaft of the winding wheel 501 extends out of the second guide bracket 502 and is fixedly connected to the throttle handle 503; The winding wheel 501 is coaxially provided with a ratchet 504. One end of the pawl 505 is rotatably connected to the side wall of the second guide bracket 502. One end of the second elastic element 506 is fixed to the side wall of the second guide bracket 502, and the other end is connected to the free end of the pawl 505, driving the free end of the pawl 505 to be engaged in the tooth groove of the ratchet 504, thereby limiting the rotation of the winding wheel 501.

[0031] The reel assembly 5 serves as the starting point for fixing the rigid rope 7 and the length adjustment mechanism. The starting end of the rigid rope 7 is reliably fixed to the winding reel 501. In this embodiment, the rope end of the rigid rope 7 is preferably embedded in the reel groove, tightened with a screw, or knotted before embedding. The second guide bracket 502 has an axial first guide hole 5021 in its center. When the rigid rope 7 extends from the winding reel 501 to the top of the telescopic rod 1 and returns to the gripping end 4 via the guide assembly 8, the first guide hole 5021, corresponding to the guide assembly 8, ensures precise constraint of its return path, preventing interference with the portion of the rigid rope 7 extending from the winding reel 501. The edge of the first guide hole 5021 is smoothed to reduce friction during the movement of the rigid rope 7.

[0032] When it is necessary to extend the telescopic rod 1 to release the rigid rope 7, rotate the handle 503 in one direction. The ratchet 504 will rotate accordingly. The inclined teeth of the pawl 505 will be pushed by the ratchet teeth to overcome the slight elastic force of the second elastic element 506 and lift up. After sliding through one tooth groove, it will fall into the next tooth groove under the action of the elastic force. This process allows the ratchet 504 and the winding wheel 501 to rotate smoothly to release the rope.

[0033] When an external force attempts to pull the rigid rope 7 in the opposite direction, the straight teeth of the pawl 505 will firmly lock into the tooth groove of the ratchet 504, preventing it from rotating. This locking is automatic and continuous. As long as there is no human intervention in the pawl 505, even if the operator releases the throttle 503, the winding reel 501 will not accidentally reverse and rewind the rope due to the tension or gravity of the rigid rope 7.

[0034] When the telescopic rod 1 needs to be shortened and the rope needs to be actively retracted, the operator manually moves the free end of the pawl 505 to overcome the elastic force of the second elastic element 506 and disengage it from the tooth groove of the ratchet 504. At this time, the handle 503 can be freely rotated in the opposite direction to retract the rigid rope. After releasing the pawl 505, it will re-engage into the tooth groove of the ratchet 504 under the action of elastic force, restoring the locked state.

[0035] In the preferred embodiment, the grip part 4 is provided with a handle 6 in the middle, the middle of the handle 6 is rotatably connected to the outer shell of the grip part 4, one end extends into the inner cavity of the grip part 4, and the other end extends towards the bottom of the grip part 4; The handle 6 is inserted into the top of the second pulley 601 of the inner cavity of the grip part 4 and rotated. The rigid rope 7 passes through the second guide hole 401 at the top of the grip part 4, and after passing around the second pulley 601, its end is fixed to the rear side of the inner wall of the grip part 4.

[0036] The grip portion 4 is also provided with a third elastic element 10. One end of the third elastic element 10 is fixed to one side of the second pulley 601 of the handle 6, and the other end is fixed to the rear side of the inner wall of the grip portion 4, driving the part of the handle 6 inside the grip portion 4 to rotate toward the rear end of the grip portion 4.

[0037] The handle 6 is rotatably connected to the outer shell of the grip part 4, forming a lever. Its operating end extends towards the bottom of the grip part 4 for the operator to press. The other end, as the functional end, extends into the inner cavity of the grip part 4, and is rotatably connected to the second pulley 601 at the top of this end. The rigid rope 7 is guided from above through the second guide hole 401 and then passes through the grip part 4. The path of the rigid rope 7 in the inner cavity of the grip part 4 is as follows: passing through the second guide hole 401, around the second pulley 601, and its end is fixed to the rear side of the inner wall of the grip part 4.

[0038] This structure makes the second pulley 601 a movable pulley. When the operator presses the operating end of the handle 6, the functional end of the handle 6 rotates downward around its central fulcrum. Since the fixed point remains stationary, the movable pulley is pulled downward. According to the characteristics of the movable pulley, under ideal conditions, the rigid rope 7 will be pulled twice the stroke of the movable pulley. That is, this structure allows the handle 6 to obtain a larger rigid rope 7 within the limited operating space of the grip 4, thereby achieving a sufficient opening angle of the grab assembly 2 with less hand movement.

[0039] When the operator releases the pressing end of handle 6, the restoring force of the third elastic element 10 drives the functional end of handle 6 to rotate back to its initial position. This returns the operating end of handle 6 to its unpressed state. Simultaneously, the reset of the functional end of handle 6 also drives the second pulley 601 back to its original position, stopping the tension on the rigid rope 7. Furthermore, once the rigid rope 7 is released, the first elastic element 3 on the grab assembly 2 will immediately drive the upper grab 201 to close. Therefore, the function of the third elastic element 10 is to ensure that handle 6 automatically resets after release, thus working in conjunction with the first elastic element 3 to quickly and reliably close the grab.

[0040] Specifically, during operation, the user presses the handle 6 to rotate its end toward the grip part 4. The second pulley 601 drives the movable end of the external rigid rope 7 of the telescopic rod 1 to move toward the rear end of the device. Since the other end of the rigid rope 7 is fixed to the reel assembly 5 tensioned at a fixed length, this shortening will cause the first pulley 9 at the end of the first fork 2011, which is wound around the middle of the rigid rope 7, to be pulled backward. Since the ends of the upper grab 201 and the lower grab 202 are hinged, and the end of the first fork 2011 is in a higher position, this traction will drive the first fork 2011 to rotate, thereby forcing the upper grab 201 to open relative to the lower grab 202. This action is used to load drugs or to release drugs after the device is extended. When the user releases handle 6, the second elastic element 10 drives handle 6 to reset, stopping the pull on the rigid rope 7. Simultaneously, the first elastic element 3 drives the upper grab 201 to rotate. Under the combined action of these two sets of elastic elements, the upper grab 201 recloses relative to the lower grab 202, ensuring that the drug does not leak during the extension or positioning of the device. In addition, to lock the rigid rope 7 at a set length for extension and retraction, the device is equipped with a ratchet mechanism; when the length needs to be adjusted, the user can manually move the pawl 505 to release the winding wheel 501 to rotate, thereby winding or unwinding the rigid rope 7.

[0041] In the preferred embodiment, multiple sleeves 101 are coaxially connected along the same axis to form a telescopic rod 1. Each level of sleeve 101 is a hollow structure, and the outer diameter of the inner sleeve 101 in adjacent sleeves 101 is matched with the inner diameter of the outer sleeve 101. The top end of the sleeve 101 is provided with a constriction portion 1011 and the bottom end is provided with an annular limiting boss 1012. The inner diameter of the constriction portion 1011 is adapted to the outer diameter of the next-level inner sleeve 101, and the outer diameter of the annular limiting boss 1012 is adapted to the inner diameter of the previous-level outer sleeve 101. Through the snap-fit ​​cooperation between the constriction portion 1011 and the annular limiting boss 1012, an axially limiting telescopic structure is formed. A guide ring 1013 is provided on one side of the top end of the sleeve 101 for fixing the conveying pipeline 11.

[0042] Each level of sleeve 101 features a hollow design, reducing weight and providing an internal passage for the rigid rope 7 or other possible wiring such as lighting. Adjacent sleeves are precisely fitted with an inner sleeve outer diameter that matches the outer sleeve inner diameter, ensuring smooth extension and retraction without excessive wobbling. The top constriction 1011 and the bottom annular limiting boss 1012 constitute a crucial axial limiting mechanism. When extended, the annular limiting boss 1012 at the bottom of the inner sleeve 101 abuts against the inner edge of the top constriction 1011 of the outer sleeve, preventing it from completely disengaging. When retracted, the top constriction 1011 of the inner sleeve abuts against the annular limiting boss 1012 at the bottom of the next innermost sleeve 101, preventing excessive retraction. This stepped limiting design ensures the telescopic rod remains stable at any length, withstands bending moments during operation, and can safely and reliably extend and retract repeatedly. The delivery pipeline 11 moves within the guide ring 1013, and its length is adjusted according to the height of the telescopic rod 1.

[0043] In the preferred embodiment, the power control assembly includes a diaphragm pump 12 and a selector valve 13; Selector valve 13 is configured with three independent inlets and one outlet. The three independent inlets are respectively connected to an external water source, a liquid chemical storage device, and a powdered chemical storage device through pipelines. Only one inlet and one outlet are open at a time to prevent material from flowing back from the outlet to any inlet, thus avoiding material backflow and contamination of the external storage device. The inlet of the diaphragm pump 12 is connected to the outlet of the selector valve 13 via a pipeline, and its outlet is connected to the beginning of the delivery pipeline 11.

[0044] The preferred diaphragm pump in the power control assembly is the Wilo PB-088EA miniature diaphragm pump, which is suitable for handheld operation. The diaphragm pump is lightweight and compact, and can be embedded in the grip. It is compatible with multiple media such as liquids, powders and water, has strong self-priming ability to adapt to field scenarios, and adjustable pressure to meet the needs of high-altitude delivery and spraying. It is resistant to chemical corrosion, prevents backflow and contamination, and has low vibration and noise to ensure accurate application and convenient operation.

[0045] The selector valve 13 in the power control assembly adopts a standard combination structure of a three-position four-way solenoid directional valve and three check valves, requiring no customization. The preferred three-position four-way solenoid directional valve is the Airtac 3V310-10 or Bosch Rexroth 4WE6J series, and the preferred check valve is the Parker DT-620 series straight-through check valve. The connection relationship is as follows: the P, A, and B working ports of the three-position four-way solenoid directional valve are respectively connected to the external water source, the liquid chemical storage device, and the powdered chemical storage device. The return port T is sealed by a plug. The three check valves are connected in series in the three feed lines, with the conduction direction set from the storage device to the three-position four-way solenoid directional valve to prevent material backflow. The common outlet of the three-position four-way solenoid directional valve is connected to the inlet of the diaphragm pump 12 through a pipeline, and the outlet of the diaphragm pump 12 is connected to the starting end of the conveying pipeline 11. The selector valve 13 achieves a three-way selection of three materials for supply by switching the valve core. When a certain type of material needs to be supplied, the three-position four-way solenoid directional valve switches to the corresponding position, so that the feed port of the material is connected to the common outlet, and the other ports are closed. The material enters the diaphragm pump 12 through the corresponding check valve. When not in operation, the valve core resets to the middle position, and all feed ports are closed.

[0046] Example 2 Further explanation in conjunction with Example 1, such as Figure 1-10 The structure shown illustrates a method for using a targeted pesticide application system for tall plant pests, the method comprising: A1. Medicine Packet Dropping Mode: Without using a conveyor mechanism, the medicine pack is placed directly into the grab bucket assembly 2, and after being moved to the target height via the telescopic rod 1, the grab bucket assembly 2 is opened by operating the handle 6 to drop the medicine pack to the target position. A2. Material conveying mode: After the telescopic rod 1 extends to the target height, the conveying mechanism is connected to the corresponding external storage device. The required material type is selected through the power control component and pumped into the lower grab bucket 202 cavity through the conveying pipe 11. The grab bucket component 2 is operated to open and close, and the material ejection mechanism ejects the material accumulated in the cavity to the target position. A3. Liquid jet mode: When conveying liquid medicine or water, the telescopic rod 1 extends to the target height, the grab bucket assembly 2 opens, and the pumping pressure of the diaphragm pump 12 is controlled so that the liquid material is directly sprayed to the target position through the conveying pipe 11. A4. Pipeline cleaning mode: After completing the chemical delivery, switch the selector valve 13 to the external water source inlet, and pump clean water through the diaphragm pump 12 to flow through the internal pipeline of the diaphragm pump 12, the delivery pipeline 11 and the lower grab bucket 202 cavity for cleaning.

[0047] The pesticide packet delivery mode is suitable for pre-packaged quantitative pesticide packets. When using it, the sleeve 101 of the telescopic rod 1 should be stretched section by section according to the height of the pest location. Each section is stretched and locked in length by the ratchet 504 and pawl 505 to ensure that the telescopic rod 1 is stably supported and does not wobble. Then, the pesticide packet that matches the size of the grab bucket cavity is placed steadily in the lower grab bucket 202, ensuring that the pesticide packet does not exceed the edge of the grab bucket to avoid falling off during the transfer. Next, the operator holds the grip part 4 and slowly raises the telescopic rod 1 to the target height, adjusts the angle so that the grab bucket assembly 2 is aligned with the pest area, and then the operator presses the handle 6. The upper grab bucket 201 is opened by the traction of the rigid rope 7. At the same time, the material ejection mechanism helps the pesticide packet to quickly detach from the grab bucket and be accurately delivered to the designated location. The whole process does not require additional power, is easy to operate and is suitable for rural courtyards or forest environments with inconvenient transportation.

[0048] The material conveying mode is designed for bulk powdered or granular pesticides. Before use, the outlet of the external storage device must be sealed to the inlet of the selector valve 13 to ensure no leakage at the connection. After the telescopic rod 1 is extended to the target height and locked, the inlet and outlet corresponding to the required material are opened through the switching selector valve 13 of the power control component. Then, the diaphragm pump 12 is started, and the pumping pressure is adjusted according to the material characteristics so that the material is conveyed to the lower grab bucket 202 cavity through the conveying pipeline 11 at a stable flow rate. After the material accumulates to the required amount, the diaphragm pump 12 is turned off, and the handle 6 is operated to open and close the grab bucket assembly 2. The impact hammer 2013 strikes the elastic membrane 2021 to propel the material to the target position. This mode can achieve continuous pesticide application and is suitable for large-scale pest control.

[0049] The liquid spray mode is suitable for liquid agents or water. When using it, ensure that the selector valve 13 is accurately switched to the inlet corresponding to the liquid material. After the telescopic rod 1 is accurately positioned, open the grab bucket assembly 2 to a larger angle to form a stable flow channel and prevent the liquid material from flowing back to the surface of the telescopic rod 1 during spraying. After starting the diaphragm pump 12, adjust the pumping pressure according to the spraying distance requirements so that the liquid material is sprayed out at high speed from the lower grab bucket 202 cavity through the conveying pipeline 11. It can accurately cover hidden parts such as insect holes or the back of leaves. At the same time, the spraying direction can be finely adjusted by controlling the opening and closing angle of the handle 6 to improve the targeting of the pesticide.

[0050] The pipeline cleaning mode is a key step in ensuring the service life of the device and the purity of the pesticide application. After each pesticide delivery, the selector valve 13 should be switched to the external water source inlet in time, and the diaphragm pump 12 should be started to pump clean water. The clean water flows through the internal pipeline of the diaphragm pump 12, the delivery pipeline 11 and the lower grab bucket 202 cavity at a medium pressure, and is continuously flushed for 3-5 minutes to ensure that the residual pesticide in the pipeline is completely removed. During the cleaning process, the handle 6 can be operated repeatedly to open and close the grab bucket assembly 2, so that the clean water can fully rinse the inner wall of the grab bucket and the surface of the elastic membrane 2021. After cleaning, the diaphragm pump 12 is turned off and the water in the pipeline is drained to avoid the residual water from reacting with the subsequent pesticides, and to prevent the inner wall of the pipeline from being corroded or blocked due to pesticide residue.

[0051] The above embodiments are merely preferred technical solutions of the present invention and should not be considered as limitations on the present invention. The scope of protection of the present invention should be limited to the technical solutions described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A high plant pest targeted supply pesticide application system, characterized by: The telescopic rod (1) is provided with a grab bucket assembly (2) at the top end, the grab bucket assembly (2) comprises a lower grab bucket (202) fixedly arranged at the top end of the telescopic rod (1), an upper grab bucket (201) rotationally connected with the rear end of the lower grab bucket (202), and a material ejection mechanism, the material ejection mechanism is used for ejecting the material in the cavity of the lower grab bucket (202) when the grab bucket assembly (2) is opened; The telescopic rod (1) is provided with a holding part (4) at the lower end, the holding part (4) is provided with a wire wheel assembly (5) and a handle (6), one end of a rigid rope (7) is fixed to the wire wheel assembly (5), the other end is connected with the transmission part of the upper grab bucket (201) after linkage cooperation, and the handle (6) is connected with the handle (6) through the guide assembly (8) and the handle (6), the handle (6) drives the upper grab bucket (201) to open relative to the lower grab bucket (202) through the rigid rope (7); The telescopic rod (1) is provided with a conveying mechanism on one side, the conveying mechanism comprises a conveying pipeline (11) arranged along the length direction of the telescopic rod (1) and a power control assembly arranged on the holding part (4), one end of the conveying pipeline (11) extends into the cavity of the lower grab bucket (202), the other end is connected with the power control assembly, and the power control assembly is connected with an external storage device, so that the material in the external storage device can be selectively conveyed to the grab bucket assembly (2).

2. The system of claim 1, wherein: the system further comprises a plurality of nozzles; and the plurality of nozzles are arranged in a pattern on the system. The rear end of the upper grab bucket (201) is provided with a first shift fork (2011) and a second shift fork (2012) in an upper and lower interval, the second shift fork (2012) is connected with the top end of the telescopic rod (1) through a first elastic member (3), and the first elastic member (3) drives the upper grab bucket (201) to rotate and cover on the lower grab bucket (202); The end of the first shift fork (2011) is rotationally connected with a first pulley (9), and the rotation axis of the first pulley (9) is parallel to the rotation axis of the upper grab bucket (201); The rigid rope (7) is connected with the transmission part of the upper grab bucket (201) through the first pulley (9) around the end of the second shift fork (2012).

3. The system of claim 1, wherein the system further comprises: a plurality of nozzles; and a plurality of valves, each of the plurality of valves being connected to one of the plurality of nozzles. The rear end of the lower grab bucket (202) is fixedly connected with the top end of the telescopic rod (1); The material ejection mechanism comprises an elastic film (2021) arranged at the rear end of the lower grab bucket (202) and a hammer (2013) arranged at the rear end of the upper grab bucket (201) and corresponding to the position of the elastic film (2021), when the upper grab bucket (201) is rotated and opened relative to the lower grab bucket (202) to a specific angle, the hammer (2013) hits the elastic film (2021), so that the material in the cavity of the lower grab bucket (202) is ejected from the grab bucket assembly (2).

4. The system of claim 1, wherein: the system further comprises a plurality of nozzles; and the plurality of nozzles are arranged in a pattern on the system. The guide assembly (8) comprises a guide wheel (801) and a first guide bracket (802), and the guide wheel (801) is arranged at the top end of the telescopic rod (1) close to the grab bucket assembly (2); The guide wheel (801) is arranged away from the telescopic rod (1) in the radial direction through the first guide bracket (802), so that the lower end point of the guide wheel (801) is higher than the height of the same side end point of the maximum outer diameter shaft section of the telescopic rod (1); The wire wheel assembly (5) comprises a winding wheel (501) and a second guide bracket (502), and the winding wheel (501) is arranged at the top end of the holding part (4) through the second guide bracket (502). The guide bracket (502) is provided with an axially penetrating first guide hole (5021) in the middle part, and the rigid rope (7) is arranged in the first guide hole (5021).

5. The system of claim 4, wherein the system further comprises a plurality of nozzles. The height of the lower end point of the guide wheel (801) is equal to the height of the first guide hole (5021). The height of the end part of the first shift fork (2011) is greater than the height of the lower end point of the guide wheel (801) and the height of the first guide hole (5021).

6. The system of claim 1, wherein: the system further comprises a plurality of nozzles; and the plurality of nozzles are arranged in a pattern on the system. One end of the rotating shaft of the winding wheel (501) extends out of the second guide bracket (502) and is fixedly connected with the handle (503). The winding wheel (501) is coaxially provided with a ratchet wheel (504), one end of a pawl (505) is rotationally connected to the side wall of the second guide bracket (502), one end of a second elastic member (506) is fixed to the side wall of the second guide bracket (502), the other end is connected with the free end of the pawl (505), the free end of the pawl (505) is clamped in the tooth groove of the ratchet wheel (504), and the pawl (505) is used to limit the rotation of the winding wheel (501).

7. The system of claim 1, wherein: the system further comprises a plurality of nozzles; and the plurality of nozzles are arranged in a pattern on the system. The middle part of the holding part (4) is provided with a handle (6), the middle part of the handle (6) is rotationally connected with the shell of the holding part (4), one end extends into the inner cavity of the holding part (4), and the other end extends to the bottom end of the holding part (4). The top end of the second pulley (601) of the handle (6) extending into the inner cavity of the holding part (4) is rotationally connected, the rigid rope (7) passes through the second guide hole (401) at the top end of the holding part (4), and after winding around the second pulley (601), the end part is fixed to the rear side of the inner wall of the holding part (4). The holding part (4) is also provided with a third elastic member (10), one end of the third elastic member (10) is fixed to one side of the second pulley (601) of the handle (6), and the other end is fixed to the rear side of the inner wall of the holding part (4), and the third elastic member (10) is used to drive the part of the handle (6) in the holding part (4) to rotate to the rear end of the holding part (4).

8. The system of claim 1, wherein: the system further comprises a plurality of nozzles; and the plurality of nozzles are arranged in a pattern on the system. A plurality of sleeves (101) are coaxially sleeved along the same axis to form an extension rod (1), each sleeve (101) is a hollow structure, and the outer diameter of the inner sleeve (101) and the inner diameter of the outer sleeve (101) are matched. The top end of the sleeve (101) is provided with a necked part (1011), and the bottom end is provided with an annular limiting boss (1012), the inner diameter of the necked part (1011) is matched with the outer diameter of the inner sleeve (101) of the next level, and the outer diameter of the annular limiting boss (1012) is matched with the inner diameter of the outer sleeve (101) of the previous level. The top end of the sleeve (101) is provided with a guide ring (1013) on one side, which is used for fixing the conveying pipeline (11).

9. The system of claim 1, wherein: the system further comprises a plurality of nozzles; and the plurality of nozzles are arranged in a pattern on the system. The power control assembly comprises a diaphragm pump (12) and a selector valve (13). The selector valve (13) is configured to have three independent inlets and one outlet, the three independent inlets are respectively connected with an external water source, a liquid medicine storage device and a powder medicine storage device through pipelines, and only one inlet is connected with the outlet at the same time, the backflow of the material from the outlet to any inlet is prevented, and the backflow of the material is avoided to pollute the external storage device. The inlet of the diaphragm pump (12) is connected to the outlet of the selection valve (13) by a pipe, and the outlet of the selection valve (13) is connected to the starting end of the delivery pipe (11).

10. The method of using a high plant pest targeted feeding applicator system according to any one of claims 1-9, wherein: The method comprises: A1, medicine bag throwing mode: without using the delivery mechanism, the medicine bag is directly placed in the grab bucket assembly (2), and after the telescopic rod (1) is moved to the target height, the grab bucket assembly (2) is opened by operating the handle (6), and the medicine bag is thrown to the target position; A2, material delivery mode: after the telescopic rod (1) is extended to the target height, the delivery mechanism is connected with the corresponding external material storage device, the required material type is selected through the power control assembly, and the material is pumped into the cavity of the lower grab bucket (202) through the delivery pipe (11), the grab bucket assembly (2) is opened and closed, and the accumulated material in the cavity is ejected to the target position through the material ejection mechanism; A3, liquid injection mode: when delivering liquid medicine or water, the telescopic rod (1) is extended to the target height, the grab bucket assembly (2) is opened, the pumping pressure of the diaphragm pump (12) is controlled, and the liquid material is directly injected to the target position through the delivery pipe (11); A4, pipe cleaning mode: after the medicine delivery is completed, the selection valve (13) is switched to the external water source inlet, and the clean water is pumped by the diaphragm pump (12) to flow through the internal pipe of the diaphragm pump (12), the delivery pipe (11) and the cavity of the lower grab bucket (202) for cleaning.

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