Agricultural disease and pest control agent dispensing device
By using a T-shaped double-layer load-bearing frame, Mecanum wheels, and an intelligent control system, the problem of flexibility and precise spraying of pesticide application devices in complex terrain has been solved, realizing efficient and precise application of pesticides and automated management of smart agriculture.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QIANJIANG INNOVATION AGRICULTURAL TECHNOLOGY CO LTD
- Filing Date
- 2025-07-03
- Publication Date
- 2026-06-05
AI Technical Summary
Existing pesticide application devices for pest and disease control lack flexibility in complex terrain, may crush crops, lack intelligent obstacle avoidance and remote control, are inefficient, and have limited nozzle adjustment options, resulting in uneven or wasteful pesticide application.
It adopts a T-shaped double-layer load-bearing frame, Mecanum wheels, intelligent control system and multi-nozzle design, combined with shock absorption mechanism, omnidirectional movement mechanism and precision spraying system to achieve stability, flexibility and precision spraying in complex terrain.
It improves the stability and flexibility of equipment operation in complex terrain, enables precise and efficient application of pesticides, reduces crop damage and pesticide waste, and enhances the level of automated management in smart agriculture.
Smart Images

Figure CN224320101U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of pesticide application devices for pest and disease control, specifically a pesticide application device for smart agriculture. Background Technology
[0002] Pesticide application devices are automated equipment used in smart agriculture, primarily for the precise and efficient application of pesticides during the control of pests and diseases in farmland. However, existing pesticide application devices have some shortcomings, such as:
[0003] The plant disease and pest control pesticide spraying device described in application number CN202410525049.2 adopts a traditional mobile method, which has poor flexibility in complex terrain (such as hills and narrow field ridges) and may crush crops; it may lack intelligent obstacle avoidance and remote control functions, relying on manual operation, which is inefficient and prone to human error; the nozzle adjustment method may be limited, making it difficult to accurately adapt to different crop heights and environmental factors, resulting in uneven pesticide spraying or waste. Utility Model Content
[0004] The purpose of this invention is to provide a smart agricultural pesticide application device to address the problems mentioned in the background art. Existing equipment on the market uses traditional mobile methods, which result in poor flexibility in complex terrain (such as hills and narrow ridges), potentially damaging crops; it may lack intelligent obstacle avoidance and remote control functions, relying on manual operation, leading to low efficiency and susceptibility to human error; and the nozzle adjustment methods may be limited, making it difficult to accurately adapt to different crop heights and environmental factors, resulting in uneven pesticide spraying or waste.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a smart agricultural pest and disease control agent dispensing device, comprising a support frame, connecting rods, a fixing frame, wheel hubs, and a transmission rod;
[0006] A shock-absorbing mechanism is installed under the load-bearing frame. The shock-absorbing mechanism includes a connecting rod, a fixed frame, a first support block, a second support block, and a shock absorber. The connecting rod, as a structural component of the fixed frame and the load-bearing frame, plays a role in limiting movement. The first support block, the second support block, and the shock absorber constitute the core shock-absorbing component, which performs the shock-absorbing function.
[0007] As a preferred technical solution of this utility model, bolt holes are provided on both sides of the center line on the upper surface of the support frame, the support frame is T-shaped overall, and the support frame is divided into a double-layer design;
[0008] The above technical solution adopts a T-shaped double-layer structure with bolt holes. The double-layer design can optimize the distribution of the equipment's center of gravity. The upper layer facilitates the quick installation or replacement of modules such as the main unit box and the chemical storage box through the bolt holes, thereby improving the modular expansion capability of the equipment. The lower layer is rotatably connected to the fixed frame through the connecting rod, so that the four-bar frame of the shock absorption mechanism can effectively absorb the vibration of bumps in the field, reduce the rigid impact of the frame, and adapt to the needs of complex terrain operations.
[0009] As a preferred technical solution of this utility model, the second support blocks are fixedly connected to both sides of the lower part of the load-bearing frame. The second support blocks are arranged in groups of two, with a total of four groups evenly arranged. The second support blocks are rotatably connected to one end of the shock absorber, and the other end of the shock absorber is rotatably connected to the first support block.
[0010] Using the above technical solution, the Mecanum wheel is connected to the motor through a transmission rod. The outer side of the transmission rod is fitted with a wheel hub and fixed by the first bolt and the second bolt. The omnidirectional roller of the Mecanum wheel enables omnidirectional movement such as translation and rotation, allowing for flexible turning between narrow ridges without crushing crops.
[0011] As a preferred technical solution of this utility model, the first support block is fixedly connected to the top of the fixed frame. The fixed frame is a right-angled U-shaped structure, and a pair of connecting rods are rotatably connected to both sides of the fixed frame. The connecting rods are obliquely placed and rotatably connected to the carrier frame.
[0012] Using the above technical solution, the intelligent control system is integrated into the main unit, including a vision sensor + radar, a GPS positioning sensor, and a wireless communication module. The vision sensor + radar can scan the farmland environment in real time and autonomously avoid obstacles through built-in algorithms to avoid collisions with crops or obstacles; the GPS positioning sensor, combined with an electronic map, achieves centimeter-level positioning of the work area to ensure accurate pesticide application; the wireless communication module supports remote control, allowing operators to monitor the equipment status and adjust parameters in real time, improving the efficiency of large-area farmland operations, while the operation data recording function provides support for the data-driven management of smart agriculture.
[0013] As a preferred embodiment of this utility model, a motor is fixedly connected to the inner side of the fixing frame, and the output shaft of the motor passes through the fixing frame and is fixedly connected to the transmission rod;
[0014] By adopting the above technical solution, the efficiency of power transmission can be improved by directly connecting the motor output shaft and the transmission rod. At the same time, the decoupled drive method of the independent motor can ensure power distribution and realize automatic differential speed, thereby improving the mobility and flexibility of the equipment.
[0015] As a preferred technical solution of this utility model, the transmission rod is divided into six segments, a wheel hub is fitted on the outer side of the transmission rod, the wheel hub is clamped on the left side by a first bolt, and six second bolts are threaded to the side of the first bolt, and a Mecanum wheel body is installed inside the wheel hub;
[0016] By adopting the above technical solution, the six-lobed structure of the transmission rod and the double-bolt locking mechanism ensure the reliability of the transmission system in bumpy environments, reduce the risk of component loosening, and the modular wheel set facilitates individual maintenance and replacement, reducing downtime.
[0017] As a preferred technical solution of this utility model, the main unit is fixed above the support frame by a third bolt. The main unit has a built-in water tank and an atomizing nozzle is fixedly connected to the side of the main unit. There are eight atomizing nozzles symmetrically distributed. The main unit is equipped with a visual sensor and radar for active obstacle avoidance.
[0018] Using the above technical solution, the eight atomizing nozzles fixedly connected to the side of the main unit are symmetrically distributed and can be rotated and adjusted by a motor. The spraying direction can be dynamically adjusted according to the crop height to ensure that the pesticide is evenly attached to the plant leaves and stems. In windy conditions, the pesticide drift loss can be reduced by adjusting the nozzle angle, which improves the control effect and reduces waste. The coordinated operation of multiple nozzles can also improve the spraying coverage efficiency per unit time.
[0019] Compared with the prior art, the beneficial effects of this utility model are:
[0020] 1. Vibration damping mechanism improves operational stability: A vibration damping mechanism consisting of a connecting rod, a fixed frame, a first support block, a second support block, and a shock absorber is installed under the load-bearing frame. The connecting rod, as a structural component of the fixed frame and the load-bearing frame, limits the movement trajectory. The first support block, the second support block, and the shock absorber constitute the core vibration damping components. Through a spring-hydraulic composite structure, it absorbs the vibrations from bumps in the field, reduces equipment swaying and the risk of pesticide container leakage, and extends the service life of the equipment. It is especially suitable for uneven farmland terrain.
[0021] 2. Optimized structural layout of T-shaped double-layer frame: The load-bearing frame adopts a T-shaped double-layer design, with bolt holes on both sides of the center line of the upper surface. The upper layer is fixed to precision components such as the main unit box through a third bolt, while the lower layer connects the shock absorption mechanism and the moving mechanism, forming a stable center of gravity distribution of "light on top and heavy on the bottom", reducing the risk of rollover. The bolt holes support modular installation, allowing for quick replacement of the agent storage tank or sensor module to adapt to diverse operational needs. Furthermore, the double-layer structure is rotatably connected to the fixed frame through a connecting rod, further enhancing the shock absorption linkage effect.
[0022] 3. Mecanum wheel set enables omnidirectional flexible movement: The moving mechanism adopts Mecanum wheel body, and the transmission rod driven by the motor drives the wheel hub to rotate. It utilizes the characteristics of omnidirectional rollers to achieve translation, diagonal movement and rotation in place. It can flexibly move between narrow field ridges without crushing crops. The six-lobed structure of the transmission rod is double fixed to the wheel hub by the first bolt and the second bolt to form an anti-loosening mechanism, ensuring the transmission reliability in complex terrain. Moreover, the modular wheel set is easy to disassemble and maintain individually, reducing downtime.
[0023] 4. Intelligent control system enhances automation: The main unit is equipped with a vision sensor and radar that can scan the farmland environment in real time. Combined with built-in algorithms, it can achieve autonomous obstacle avoidance and path planning to avoid collisions with crops or obstacles. The GPS positioning sensor and wireless communication module work together to support remote control and centimeter-level positioning of the work area. Operators can monitor the remaining amount of pesticides, driving speed and other statuses in real time and adjust parameters. At the same time, they can record operation data to support the data-driven management of smart agriculture and the analysis of prevention and control effects.
[0024] 5. Precise coverage achieved by the atomizing spraying system: Eight atomizing nozzles fixed on the side of the main unit are symmetrically distributed and can be rotated and adjusted in angle. After the pesticide is atomized by the built-in pressure pump, the spraying direction is dynamically adjusted according to the crop height or ambient wind speed to ensure that the pesticide is evenly attached to all parts of the plant. The coordinated operation of multiple nozzles can improve the coverage efficiency per unit time. In windy weather, the angle can be adjusted to reduce pesticide drift loss, improve the control effect and reduce pesticide waste, and achieve precise and efficient operation. Attached Figure Description
[0025] Figure 1 This is a side view of the structure of this utility model;
[0026] Figure 2 This is a schematic diagram of the fixing frame and the first bolt structure of this utility model;
[0027] Figure 3 This is a schematic diagram of the bolt hole positions and the structure of the second support block of this utility model;
[0028] Figure 4 This is a schematic diagram of the Mecanum wheel body and the first support block structure of this utility model;
[0029] Figure 5 This is a schematic diagram of the connecting rod and fixing frame structure of this utility model;
[0030] Figure 6 This is a side view of the transmission rod structure of this utility model;
[0031] Figure 7 This is a side view of the wheel hub structure of this utility model.
[0032] In the diagram: 1. Load-bearing frame; 2. Connecting rod; 3. Fixing frame; 4. Wheel hub; 5. First bolt; 6. Second bolt; 7. Mecanum wheel body; 8. First support block; 9. Atomizing nozzle; 10. Main unit housing; 11. Shock absorber; 12. Third bolt; 13. Motor; 14. Bolt hole positions; 15. Second support block; 16. Drive rod. Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0034] Please see Figures 1-7 The present invention provides a smart agricultural pest and disease control agent dispensing device, comprising a supporting frame 1, a connecting rod 2, a fixing frame 3, a wheel hub 4, a first bolt 5, a second bolt 6, a Mecanum wheel 7, a first support block 8, an atomizing nozzle 9, a main unit box 10, a shock absorber 11, a third bolt 12, a motor 13, bolt holes 14, a second support block 15, and a transmission rod 16.
[0035] The load-bearing frame 1 adopts a T-shaped double-layer structure. The upper layer can be quickly installed or replaced with modules such as the main unit box 10 and the pesticide storage box through the bolt holes 14 on both sides of the center line, which enhances the modular expansion capability of the equipment. The double-layer design optimizes the distribution of the center of gravity. The lower layer is rotatably connected to the fixed frame 3 through the connecting rod 2, so that the four-link 2 frame of the shock absorption mechanism can effectively absorb the vibration of bumps in the field, reduce the rigid impact of the frame, adapt to complex terrain operations, and reduce the risk of rollover.
[0036] Four sets of second support blocks 15, two in each set, are evenly arranged on both sides below the load-bearing frame 1. They are rotatably connected to one end of the shock absorber 11, and the other end is fixed to the top of the fixed frame 3 through the first support block 8. This layout makes the shock absorber 11 form a symmetrical support structure, evenly dispersing the impact force, enhancing the stability of the shock absorption system, and ensuring that core components such as the main unit box 10 and the agent container remain stable when the equipment is traveling on bumpy roads, reducing the risk of agent leakage.
[0037] The fixed frame 3 is a right-angled U-shaped structure. It is rotatably connected to the load-bearing frame 1 on both sides through the inclined connecting rods 2, forming a four-link 2 shock absorption frame. The inclined connecting rods 2 not only limit the movement trajectory of the fixed frame 3, but also amplify the buffering effect of the shock absorber 11 through the lever principle, so that the vibration energy is absorbed step by step in the transmission path of connecting rod 2-fixed frame 3-frame, further improving the shock absorption performance, which is especially suitable for the undulating farmland environment.
[0038] The output shaft of the motor 13 inside the fixed frame 3 directly passes through the fixed frame 3 and is fixedly connected to the transmission rod 16, eliminating complex transmission components, shortening the power transmission path, and improving transmission efficiency. The independent motor 13 drive mode can realize automatic differential control, making the power distribution of the Mecanum wheel 7 more precise when turning or moving in all directions, improving the mobility and flexibility of the equipment in narrow spaces, and adapting to the needs of complex paths in farmland.
[0039] The six-lobed structure of the drive rod 16 fits tightly with the inner wall of the hub 4. Each hub 4 is equipped with six double bolts through the double locking of the first bolt 5 and the second bolt 6, forming a mechanical limiting structure to prevent loosening. This ensures the stability and reliability of the transmission system under high-frequency vibration. The modular wheel set design makes it easy to disassemble the Mecanum wheel 7 for maintenance or replacement without disassembling the entire transmission system, thus shortening downtime and reducing maintenance costs in the field. Furthermore, the modular structure allows for the configuration of different tires on the outside of the drive rod 16 to adapt to different terrains and road surfaces.
[0040] The main unit 10 is fixed to the top of the support frame 1 by the third bolt 12. It has a built-in water tank and is equipped with eight symmetrically distributed atomizing nozzles 9. The visual sensor and radar scan the environment in real time to achieve active obstacle avoidance and avoid collision with crops. The atomizing nozzles 9 can dynamically adjust the spraying angle according to the crop height or wind speed to ensure that the pesticide covers all parts of the plant evenly and reduce pesticide drift loss caused by wind. The multi-nozzle collaborative operation improves the coverage efficiency per unit time. Combined with the intelligent control system, it realizes the precision and efficiency of pest and disease control.
[0041] Working principle: When using a smart agricultural pest and disease control agent dispensing device, the motor 13 drives the transmission rod 16 to rotate the Mecanum wheel 7, utilizing its omnidirectional roller characteristics to achieve omnidirectional movement such as translation and rotation. At the same time, the shock absorption mechanism under the supporting frame 1 absorbs vibration through a four-link 2 frame composed of the connecting rod 2, the fixed frame 3, the first support block 8, the second support block 15, and the shock absorber 11, ensuring stable driving. The visual sensor and radar inside the main unit 10 scan the environment in real time for autonomous obstacle avoidance, and the GPS positioning sensor combined with the wireless communication module plans the path and remotely controls it. The built-in pressure pump sprays the agent through eight symmetrically distributed atomizing nozzles 9, dynamically adjusting the spraying angle according to parameters such as crop height and wind speed to achieve precise and efficient agent dispensing. All systems work together through mechanical connection and intelligent control to complete the pest and disease control task.
[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A smart agricultural pest and disease control agent dispensing device, comprising a support frame (1) and a transmission rod (16); characterized in that: A shock-absorbing mechanism is provided below the load-bearing frame (1). The shock-absorbing mechanism includes a connecting rod (2), a fixed frame (3), a first support block (8), a second support block (15), and a shock absorber (11). The connecting rod (2) serves as a structural component of the fixed frame (3) and the load-bearing frame (1) to limit the movement. The first support block (8), the second support block (15), and the shock absorber (11) form the core shock-absorbing component and perform the shock-absorbing function.
2. The smart agricultural pest and disease control agent dispensing device according to claim 1, characterized in that, Bolt holes (14) are provided on both sides of the center line on the upper surface of the load-bearing frame (1). The load-bearing frame (1) is a T-shaped structure and is divided into two layers.
3. The smart agricultural pest and disease control agent dispensing device according to claim 1, characterized in that, The second support block (15) is fixedly connected to both sides of the lower part of the load-bearing frame (1). The second support block (15) is arranged in four groups of two. The second support block (15) is rotatably connected to one end of the shock absorber (11), and the other end of the shock absorber (11) is rotatably connected to the first support block (8).
4. The smart agricultural pest and disease control agent dispensing device according to claim 1, characterized in that, The first support block (8) is fixedly connected to the top of the fixed frame (3). The fixed frame (3) is a right-angled U-shaped structure, and a pair of connecting rods (2) are rotatably connected to both sides of the fixed frame (3). The connecting rods (2) are oblique structures, and the connecting rods (2) are rotatably connected to the carrier frame (1).
5. The smart agricultural pest and disease control agent dispensing device according to claim 1, characterized in that, The motor (13) is fixedly connected to the inner side of the fixed frame (3), and the output shaft of the motor (13) passes through the fixed frame (3) and is fixedly connected to the transmission rod (16).
6. The smart agricultural pest and disease control agent dispensing device according to claim 1, characterized in that, The transmission rod (16) is divided into six segments. A hub (4) is fitted on the outer side of the transmission rod (16). The hub (4) is clamped on the left side by a first bolt (5). The first bolt (5) is threaded with a second bolt (6) on its side. A total of six bolts are connected. A Mecanum wheel body (7) is installed inside the hub (4).
7. The smart agricultural pest and disease control agent dispensing device according to claim 1, characterized in that, The main unit (10) is fixed above the support frame (1) by a third bolt (12). The main unit (10) has a built-in water tank and atomizing nozzles (9) are fixedly connected to the side of the main unit (10). There are eight atomizing nozzles (9) symmetrically distributed. The main unit (10) is equipped with a visual sensor and radar for active obstacle avoidance.