Forest tree crown pesticide applying device
By designing an adjustable height and angle canopy spraying device, the problem of existing devices being unable to cover the top of the canopy of tall trees and adapt to the three-dimensional structure of the canopy has been solved, achieving uniform spraying of the pesticide and efficient control.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING LINWEI ECOLOGICAL AGRI TECH CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-05-01
AI Technical Summary
Existing forest spraying devices have limited spraying height, making it impossible to cover the top area of the canopy of tall trees. Furthermore, the fixed nozzle angle cannot adapt to the three-dimensional structure of the tree canopy, resulting in poor control effects.
A tree canopy spraying device was designed. Through an adjustment system driven by a pneumatic cylinder and an electric motor, the height and angle of the nozzle can be flexibly adjusted to ensure that the liquid covers the three-dimensional structure of the tree canopy. This includes precise adjustment of the nozzle height and angle, combined with a stirring structure to ensure uniform mixing of the liquid.
It achieves full coverage of the tree canopy, improves the uniformity and coverage of pesticide application, reduces pesticide waste and environmental pollution, and enhances the control effect.
Smart Images

Figure CN224179006U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tree canopy spraying technology, specifically a tree canopy spraying device. Background Technology
[0002] The canopy of trees is a major habitat and breeding ground for many pests and pathogens. In landscaping, in order to ensure the healthy growth of trees, pesticides are applied directly to the canopy, spraying the pesticide solution onto the affected areas. This can effectively kill or inhibit pests and pathogens, prevent their spread, and thus protect the healthy growth of trees.
[0003] A Chinese patent with announcement number CN214047244U discloses a spraying machine for forest and fruit trees, including a base plate with wheels installed at the four corners of the bottom. A push rod is fixedly connected to the left side of the base plate, and a support column a is fixedly connected to the top left side of the base plate. A medicine tank is fixedly connected to the top of the support column a, and a vertical plate is fixedly connected inside the medicine tank. A medicine inlet pipe is fixedly connected to the lower end of one side of the vertical plate, and a support plate is fixedly connected to the inner wall of the medicine tank. This invention uses a vertical rod to divide the medicine tank into a medicine inlet area and a water inlet and mixing area, and a protective cover is installed at the spray nozzle. This separates the medicine inlet and mixing, and the protective cover prevents the medicine from spraying onto people and causing injury. At the same time, the spraying machine has a mixing structure, which makes the mixing and distribution of medicine and water more uniform. The overall operation is simple and practical.
[0004] The aforementioned tree spraying devices have limited spraying height when applying pesticides to trees. When targeting the canopy of tall trees, the top area of the canopy cannot be effectively covered, creating blind spots for pest control. Furthermore, existing spraying devices cannot flexibly adjust the nozzle angle. Tree canopies are usually conical or have an irregular three-dimensional structure. If the nozzle angle is fixed, the pesticide can only cover a specific planar area, which cannot adapt to the three-dimensional structure of the canopy. This results in excessive pesticide deposition in some areas and insufficient pesticide in others, leading to poor pest control effects. Therefore, a tree canopy spraying device is proposed to address the above problems. Utility Model Content
[0005] In order to overcome the shortcomings of the existing technology and solve the problems mentioned in the background, this utility model proposes a tree canopy spraying device.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A tree canopy spraying device of this utility model includes a base, on which a pneumatic cylinder is installed. A pneumatic rod is mounted on the actuating end of the pneumatic cylinder. A support plate is fixedly connected to the top of the pneumatic rod. A rotating column is rotatably mounted on the support plate. A mounting frame is fixedly connected to the top of the rotating column. A hollow tube is rotatably mounted inside the mounting frame. Multiple nozzles are connected to the hollow tube. A driven gear is fitted onto the bottom end of the rotating column. A first electric motor is installed on one side of the top of the support plate. The output end of the motor is equipped with a drive gear, and the drive gear meshes with the driven gear. A first fixed seat is installed on the other side of the top of the support plate. An electric push rod is hinged in the first fixed seat. The actuating end of the electric push rod is hinged to a second fixed seat, and the second fixed seat is fixed to the bottom side wall of one of the nozzles. When the height of the nozzle is adjusted, the nozzle is moved up or down by the operation of the pneumatic cylinder, so that the height of the nozzle can be adjusted according to the height requirements of the trees, so as to meet the spraying requirements of the canopy of trees of different heights and ensure that the top area of the tree canopy is fully and effectively covered.
[0007] When the nozzle angle needs to be adjusted, the first electric motor operates, causing the drive gear to rotate, which in turn causes the rotating column to rotate the mounting bracket and the nozzle. This allows for adjustment of the nozzle's horizontal angle. The electric push rod raises or lowers the nozzle, allowing for adjustment of its vertical angle. This enables flexible adjustment of the nozzle's angle in both the horizontal and vertical directions, better adapting to the three-dimensional structure of the tree canopy, improving the uniformity and coverage of pesticide application. By precisely adjusting the nozzle angle, it is ensured that the pesticide is accurately sprayed onto the target area, reducing pesticide waste and environmental pollution, and greatly improving the effectiveness of pest control.
[0008] Preferably, two support plates are fixedly connected to the support plate, and the two support plates are fitted with protective covers. The driving gear and the driven gear are both set inside the protective covers. When using the device, by setting the protective covers, the gear set can be completely wrapped to form a rigid physical barrier, which can completely isolate the contact between the pipe and the teeth and prevent the pipe from being scratched or worn.
[0009] Preferably, a medicine tank is provided on the base, a support seat is installed on the base, and a pump body is installed on the support seat. The input port of the pump body is connected to a water pumping pipe, and the output port of the pump body is connected to a delivery hose. The other end of the delivery hose is connected to a hollow tube. A first limiting sleeve is installed on the outer wall of the pneumatic cylinder, and a second limiting sleeve is installed on the support plate. The delivery hose passes through the first and second limiting sleeves in sequence. When applying medicine to the tree canopy, the pump body is activated, so that the medicine in the medicine tank is delivered to the hollow tube through the delivery hose, and finally sprayed onto the tree canopy through the nozzle. This can effectively kill or inhibit pests and pathogens, prevent their spread, and thus protect the healthy growth of the trees.
[0010] Preferably, a second motor is installed on the top side of the medicine box, and the output end of the second motor is connected to a stirring shaft. Multiple stirring blades are fixed on the outer surface of the stirring shaft, and a U-shaped scraper is installed at the bottom end of the stirring shaft, with the U-shaped scraper in contact with the bottom inner wall of the medicine box. A feed pipe is connected to the top side of the medicine box. Before applying the medicine to the trees, the medicine and water need to be fully mixed. The second motor is started to make the stirring shaft drive the stirring blades and the U-shaped scraper to rotate, so that the medicine and water can be fully mixed evenly, while preventing the precipitation of the medicine and ensuring the subsequent application effect.
[0011] Preferably, four mounting seats are fixed to the bottom side of the base, and each mounting seat is rotatably mounted with a caster wheel. The base is equipped with a handle. When using the device, the caster wheel makes it easy to move the device to the desired position and also facilitates the movement of the spraying operation.
[0012] The advantages of this utility model are:
[0013] 1. When the height of the nozzle is adjusted, the nozzle is moved up or down by a pneumatic cylinder, so that the height of the nozzle can be adjusted according to the height requirements of the trees, so as to meet the spraying needs of the canopy of trees of different heights and ensure that the top area of the tree canopy is fully and effectively covered.
[0014] 2. When the angle of the spray head needs to be adjusted, the first electric motor drives the driven gear to rotate, which in turn causes the rotating column to rotate the mounting frame and the spray head. This allows for adjustment of the horizontal angle of the spray head. The electric push rod raises or lowers the spray head, allowing for adjustment of the vertical angle. This achieves flexible adjustment of the spray head's angle in both the horizontal and vertical directions, better adapting to the three-dimensional structure of the tree canopy, improving the uniformity and coverage of pesticide application. Precise adjustment of the spray head angle ensures accurate spraying of the pesticide to the target area, reducing pesticide waste and environmental pollution, and greatly improving the effectiveness of pest control. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the device;
[0017] Figure 2 This is a schematic diagram showing the overall planar structure of the device;
[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the height and angle adjustment mechanism;
[0019] Figure 4 This is a schematic diagram of the first three-dimensional structure of the angle adjustment mechanism;
[0020] Figure 5 This is a schematic diagram of the second three-dimensional structure of the angle adjustment mechanism;
[0021] In the diagram: 1. Base; 2. Pneumatic cylinder; 3. Pneumatic rod; 4. Support plate; 5. Rotating column; 6. Mounting bracket; 7. Hollow tube; 8. Nozzle; 9. Driven gear; 10. First motor; 11. Drive gear; 12. First fixed seat; 13. Electric push rod; 14. Second fixed seat; 15. Support plate; 16. Protective cover; 17. Medicine box; 18. Support seat; 19. Pump body; 20. Water suction pipe; 21. Delivery hose; 22. First limit sleeve; 23. Second limit sleeve; 24. Second motor; 25. Stirring shaft; 26. Stirring blade; 27. U-shaped scraper; 28. Feed pipe; 29. Mounting seat; 30. Casters; 31. Handle. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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 of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0023] Please see Figure 1-5As shown, a tree canopy spraying device includes a base 1, a pneumatic cylinder 2 mounted on the base 1, a pneumatic rod 3 mounted on the actuating end of the pneumatic cylinder 2, a support plate 4 fixedly connected to the top of the pneumatic rod 3, a rotating column 5 rotatably mounted on the support plate 4, a mounting frame 6 fixedly connected to the top of the rotating column 5, a hollow tube 7 rotatably mounted inside the mounting frame 6, multiple nozzles 8 connected to the hollow tube 7, a driven gear 9 fitted at the bottom end of the rotating column 5, a first motor 10 mounted on one side of the top of the support plate 4, a driving gear 11 mounted at the output end of the first motor 10, and the driving gear 11 and the driven gear... 9 are interlocked. A first fixed seat 12 is installed on the other side of the top of the support plate 4. An electric push rod 13 is hinged inside the first fixed seat 12. The working end of the electric push rod 13 is hinged to a second fixed seat 14, and the second fixed seat 14 is fixed to the bottom side wall of one of the nozzles 8. When working, when it is necessary to adjust the height of the nozzle 8, the pneumatic cylinder 2 is operated to make the pneumatic rod 3 drive the support plate 4 and the nozzle 8 to move up or down, so that the height of the nozzle 8 can be adjusted according to the height requirements of the trees, so as to meet the spraying requirements of the canopy of trees of different heights and ensure that the top area of the tree canopy is fully and effectively covered.
[0024] When the angle of the nozzle 8 needs to be adjusted, the first motor 10 operates, causing the drive gear 11 to rotate, which in turn forces the driven gear 9 to drive the rotating column 5 to rotate. The rotating column 5 then drives the mounting frame 6 and the nozzle 8 to rotate, thereby allowing adjustment of the horizontal angle of the nozzle 8. The electric push rod 13 operates, causing the nozzle 8 to rise or fall, thereby allowing adjustment of the vertical angle of the nozzle 8. This achieves flexible adjustment of the nozzle 8's angle in both the horizontal and vertical directions, better adapting to the three-dimensional structure of the tree canopy, improving the uniformity and coverage of pesticide application. By precisely adjusting the angle of the nozzle 8, it is ensured that the pesticide solution is accurately sprayed onto the target area, reducing pesticide waste and environmental pollution, and greatly improving the control effect.
[0025] Two support plates 15 are fixedly connected to the support plate 4. The two support plates 15 are fitted with a protective cover 16, and the driving gear 11 and the driven gear 9 are both set inside the protective cover 16. When the device is in operation, by setting the protective cover 16, the gear set can be completely wrapped to form a rigid physical barrier, which can completely isolate the contact between the pipe and the teeth and prevent the pipe from being scratched or worn.
[0026] Please see Figure 1-2As shown, a medicine tank 17 is provided on the base 1, a support base 18 is installed on the base 1, and a pump body 19 is installed on the support base 18. The input port of the pump body 19 is connected to a water pumping pipe 20, and the output port of the pump body 19 is connected to a delivery hose 21. The other end of the delivery hose 21 is connected to the hollow tube 7. A first limiting sleeve 22 is installed on the outer wall of the pneumatic cylinder 2, and a second limiting sleeve 23 is installed on the support plate 4. The delivery hose 21 passes through the first limiting sleeve 22 and the second limiting sleeve 23 in sequence. When the medicine is applied to the tree canopy, the pump body 19 is started, so that the medicine liquid in the medicine tank 17 is drawn out through the water pumping pipe 20 and delivered to the hollow tube 7 through the delivery hose 21. Finally, it is sprayed on the tree canopy through the nozzle 8, which can effectively kill or inhibit pests and pathogens, prevent their spread and prevent their diffusion, thereby protecting the healthy growth of the trees.
[0027] A second motor 24 is installed on the top side of the medicine tank 17. The output end of the second motor 24 is connected to a stirring shaft 25. Multiple stirring blades 26 are fixed on the outer surface of the stirring shaft 25. A U-shaped scraper 27 is installed at the bottom end of the stirring shaft 25 and contacts the bottom inner wall of the medicine tank 17. A feed pipe 28 is connected to one side of the top of the medicine tank 17. During operation, before applying the medicine to the trees, the medicine and water need to be fully mixed. The second motor 24 is started, which causes the stirring shaft 25 to drive the stirring blades 26 and the U-shaped scraper 27 to rotate, so that the medicine and water can be fully mixed evenly, and the precipitation of the medicine can be prevented, ensuring the subsequent application effect.
[0028] Four mounting seats 29 are fixedly connected to the bottom side of the base 1. Each mounting seat 29 is rotatably mounted with a movable wheel 30. The base 1 is equipped with a handle 31. When using the device, the movable wheels 30 make it easy to move the device to the required position and also facilitate the movement of the spraying operation.
[0029] Working Principle: Existing forest spraying devices have limited spraying height when applying pesticides to trees. This results in ineffective coverage of the top canopy area of tall trees, creating blind spots. Furthermore, existing devices cannot flexibly adjust the angle of the nozzle (8). Since tree canopies are typically conical or irregularly shaped, a fixed nozzle angle means the pesticide can only cover a specific planar area, failing to adapt to the canopy's three-dimensional structure. This leads to excessive pesticide deposition in some areas and insufficient coverage in others, resulting in poor control. Before applying pesticides to trees, the pesticide and water must be mixed... After thorough mixing, the second motor 24 is started, causing the stirring shaft 25 to drive the stirring blades 26 and U-shaped scraper 27 to rotate. This ensures that the pesticide and water are thoroughly mixed and uniform, while preventing pesticide precipitation and ensuring the effectiveness of subsequent application. When applying the pesticide to the tree canopy, the pump body 19 is started, allowing the pesticide solution in the pesticide tank 17 to be drawn out through the water pumping pipe 20 and delivered to the hollow tube 7 through the delivery hose 21. Finally, it is sprayed onto the tree canopy through the nozzle 8, which can effectively kill or inhibit pests and pathogens, prevent their spread and prevent their proliferation, thereby protecting the healthy growth of the trees.
[0030] When the height of the nozzle 8 needs to be adjusted, the pneumatic cylinder 2 is operated to move the pneumatic rod 3 to move the support plate 4 and the nozzle 8 up or down, so that the height of the nozzle 8 can be adjusted according to the height requirements of the trees, so as to meet the spraying needs of the canopy of trees of different heights and ensure that the top area of the canopy is fully and effectively covered.
[0031] When the angle of the nozzle 8 needs to be adjusted, the first motor 10 operates, causing the drive gear 11 to rotate, which in turn forces the driven gear 9 to drive the rotating column 5 to rotate. The rotating column 5 then drives the mounting frame 6 and the nozzle 8 to rotate, thereby allowing adjustment of the horizontal angle of the nozzle 8. The electric push rod 13 operates, raising or lowering the nozzle 8, thus allowing adjustment of the vertical angle of the nozzle 8. This achieves flexible adjustment of the nozzle 8's angle in both the horizontal and vertical directions, better adapting to the three-dimensional structure of the tree canopy, improving the uniformity and coverage of pesticide application. By precisely adjusting the angle of the nozzle 8, it is ensured that the pesticide solution is accurately sprayed onto the target area, reducing pesticide waste and environmental pollution, and greatly improving the effectiveness of pest control.
[0032] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A tree canopy spraying device, characterized in that: Includes a base (1), on which a pneumatic cylinder (2) is mounted. The pneumatic cylinder (2) has a pneumatic rod (3) mounted on its working end. A support plate (4) is fixedly connected to the top of the pneumatic rod (3). A rotating column (5) is rotatably mounted on the support plate (4). A mounting bracket (6) is fixedly connected to the top of the rotating column (5). A hollow tube (7) is rotatably mounted inside the mounting bracket (6). Multiple nozzles (8) are connected to the hollow tube (7). A driven gear (9) is fitted onto the bottom end of the rotating column (5). A first motor (10) is installed on one side of the top of the support plate (4). A drive gear (11) is installed at the output end of the first motor (10), and the drive gear (11) meshes with the driven gear (9). A first fixed seat (12) is installed on the other side of the top of the support plate (4). An electric push rod (13) is hinged in the first fixed seat (12). A second fixed seat (14) is hinged at the working end of the electric push rod (13), and the second fixed seat (14) is fixed to the bottom side wall of one of the nozzles (8).
2. The tree canopy spraying device according to claim 1, characterized in that: Two support plates (15) are fixedly connected to the support plate (4). The two support plates (15) are fitted with a protective cover (16), and the driving gear (11) and the driven gear (9) are both located inside the protective cover (16).
3. A tree canopy spraying device according to claim 1, characterized in that: A medicine box (17) is provided on the base (1), a support seat (18) is installed on the base (1), a pump body (19) is installed on the support seat (18), the input hole of the pump body (19) is connected to a water pumping pipe (20), the output hole of the pump body (19) is connected to a delivery hose (21), and the other end of the delivery hose (21) is connected to a hollow tube (7).
4. A tree canopy spraying device according to claim 1, characterized in that: A first limiting sleeve (22) is installed on the outer wall of the pneumatic cylinder (2), and a second limiting sleeve (23) is installed on the support plate (4). The delivery hose (21) passes through the first limiting sleeve (22) and the second limiting sleeve (23) in sequence.
5. A tree canopy spraying device according to claim 3, characterized in that: A second motor (24) is installed on the top side of the medicine box (17). The output end of the second motor (24) is connected to a stirring shaft (25). Multiple stirring blades (26) are fixed on the outer surface of the stirring shaft (25). A U-shaped scraper (27) is installed at the bottom end of the stirring shaft (25), and the U-shaped scraper (27) is in contact with the bottom inner wall of the medicine box (17). A feed pipe (28) is connected to one side of the top of the medicine box (17).
6. A tree canopy spraying device according to claim 1, characterized in that: The base (1) has four mounting seats (29) fixedly connected to its bottom side. Each mounting seat (29) has a movable wheel (30) rotatably installed inside it. The base (1) is equipped with a handle (31).
Citation Information
Patent Citations
Pesticide spraying machine for forest trees and fruit trees
CN214047244U