Forest disease and pest control spraying device

By combining a servo motor-driven worm gear mechanism with a manual sliding plate stirring motor, the problem of the existing device's inability to adjust the spray area is solved, achieving precise spraying and uniform mixing of the pesticide solution, reducing pesticide waste, and improving the control effect of forest pests and diseases.

CN224179007UActive Publication Date: 2026-05-01NANJING LINWEI ECOLOGICAL AGRI TECH CO LTD
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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

Technical Problem

Existing forest pest and disease control spraying devices cannot adjust the spraying area according to the height of the trees, resulting in waste of pesticide solution. When the spraying height is higher than the actual height of the tree, the pesticide solution is sprayed into ineffective space.

Method used

A servo motor drives a worm gear mechanism to adjust the lifting and lowering of the piston plate, which, combined with a manual slide and a stirring motor, enables precise adjustment of the spray area and uniform mixing of the medicine.

Benefits of technology

It enables precise spraying of pesticides, reduces pesticide waste, and improves the control effect and the uniformity of pesticide concentration.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of forest disease and pest control, and particularly relates to a forest disease and pest control spraying device which comprises a straight pipe, a piston plate is slidably mounted in the straight pipe, a connecting rod is mounted on the top side of the piston plate, a threaded rod is rotatably mounted on the bottom side of a mounting frame, and a worm gear is mounted on the outer side of the bottom end of the threaded rod. A guide rod is mounted on the top side of the mounting frame, and a worm is mounted on the outer side of the rotating shaft; a servo motor is started, a rotating shaft at the output end of the servo motor drives a worm to rotate, rotation of the worm drives a worm gear to rotate, then a threaded rod rotates, a connecting rod vertically ascends and descends along a guide rod, the connecting rod drives a piston plate to synchronously ascend and descend in a straight pipe, if a forest tree is high, the threaded rod drives the piston plate to ascend, the spraying coverage range of a spraying nozzle is enlarged, and the forest tree is short; the piston plate descends, the spraying area is reduced, the spraying height is accurately adjusted, liquid medicine is intensively sprayed to forest tree parts needing prevention and control, and waste of the liquid medicine is reduced.
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Description

A forest tree pest and disease control spraying device Technical Field

[0001] This utility model relates to the field of forest tree disease and pest control technology, specifically a forest tree disease and pest control spraying device. Background Technology

[0002] In the prevention and control of forest pests and diseases in apple trees, the precise application of pesticides is necessary to control the spread of pests and diseases and reduce tree diseases. Therefore, a spraying device is required.

[0003] A Chinese patent with authorization announcement number CN221532628U discloses a pesticide spraying device for tree planting, including a base plate, a pesticide storage box fixedly connected to the top of the base plate, a conveying mechanism on the left side of the pesticide storage box, an adjusting mechanism on the top of the pesticide storage box, and a drive box fixedly connected to the right side of the pesticide storage box. This utility model can conveniently store pesticides to be sprayed by setting a pesticide storage box, and can transport and spray the pesticides in the pesticide storage box by setting a pump, which facilitates pesticide spraying operations on trees. A lifting mechanism is constructed by setting a first servo motor, a threaded rod, a threaded sleeve and a push plate, which can drive a transparent protective plate to move upward and raise the transparent protective plate to protect the workers and prevent pesticides from splashing onto the workers' body surface.

[0004] However, the above-mentioned spraying device still has some problems. In practical applications, it is impossible to adjust the spraying area according to the height of the trees. The spraying height is higher than the actual height of the tree, and a large amount of pesticide will be sprayed directly into the ineffective space above the canopy, resulting in waste of pesticide. Therefore, a forest tree disease and pest control spraying device is proposed to address the above problems. Summary of the Invention

[0005] In order to overcome the shortcomings of the existing technology and solve the problems mentioned in the background technology, this utility model proposes a forest tree disease and pest control spraying device.

[0006] The technical solution adopted by the present utility model to solve its technical problems is as follows: A forest pest control spraying device described in the present utility model includes a bottom plate. At one end of the top side of the bottom plate, a straight pipe is installed. A number of spray nozzles are equidistantly installed on the outer side of the straight pipe. A piston plate is slidably installed inside the straight pipe. The radius of the piston plate is equal to the inner diameter of the straight pipe. A connecting rod is installed on the top side of the piston plate. The connecting rod is in a "Ji" shape. An installation frame is installed on the top side of the bottom plate. A threaded rod is rotatably installed on the bottom side of the installation frame. A worm gear is installed on the outer side of the bottom end of the threaded rod. A guide rod is installed on the top side of the installation frame. A limiting plate is installed at the top end of the guide rod. The top end of the threaded rod is rotatably installed inside the bottom side of the limiting plate. A servo motor is installed on one side of the installation frame. A rotating shaft is installed at the output end of the servo motor. A worm is installed on the outer side of the rotating shaft. The worm gear and the worm are meshed with each other. One end of the connecting rod slidably penetrates through the straight pipe and is movably installed on the outer sides of the guide rod and the threaded rod. When the forest trees are relatively tall, the position of the piston plate can be raised to expand the spraying area. When the forest trees are relatively short, the position of the piston plate can be lowered to reduce the spraying area. By precisely adjusting the spraying area, the insect-proof liquid medicine can be more accurately sprayed onto the parts of the forest trees that need to be controlled, avoiding the liquid medicine being sprayed onto unnecessary areas, thereby greatly reducing the waste of the liquid medicine.

[0007] Preferably, a medicine storage cylinder is installed at the other end of the top side of the bottom plate. A feed pipe is installed on the top side of the medicine storage cylinder. One side of the bottom end of the medicine storage cylinder is connected with a delivery pipe. A pump is installed on the top side of the bottom plate. The input end of the pump is cooperatively connected with one end of the delivery pipe. The output end of the pump is connected with a connecting pipe. One end of the connecting pipe is communicated with the bottom end of the straight pipe. The pump extracts the liquid medicine from the medicine storage cylinder through the delivery pipe and then transports the liquid medicine to the bottom end of the straight pipe through the connecting pipe, realizing the stable supply of the insect-proof liquid medicine.

[0008] Preferably, two T-shaped rods are symmetrically installed on the top side of the medicine storage cylinder. A sliding plate is jointly slidably installed on the outer sides of the T-shaped rods. A handle is installed on the top side of the sliding plate. Two springs are symmetrically fixedly connected between the sliding plate and the medicine storage cylinder. The springs are respectively sleeved on the outer sides of the T-shaped rods. By operating the handle, the operator manually drives the sliding plate to move up and down, and then drives the stirring component to move up and down in the medicine storage cylinder, making the liquid medicine form a more complex flow state in the medicine storage cylinder, thereby improving the stirring effect and making the liquid medicine mix more evenly.

[0009] Preferably, a stirring motor is installed on the bottom side of the slide plate, and a rotating shaft is installed at the output end of the stirring motor. The rotating shaft extends movably to the bottom end of the pesticide storage cylinder. Four sets of stirring blades, each consisting of three blades, are equidistantly installed on the outer side of the rotating shaft. Two scrapers are symmetrically installed at the top of the rotating shaft. The scrapers are all in contact with the inner wall of the pesticide storage cylinder, which achieves thorough stirring of the pesticide solution for pest and disease control, ensuring that the pesticide solution can exert the best control effect when sprayed on the trees, and improving the ability to control forest pests and diseases.

[0010] Preferably, a push handle is installed on one side of the base plate, and casters are installed at the four corners of the bottom side of the base plate to facilitate the movement of the device by the operator.

[0011] Preferably, a storage battery is installed on the top side of the base plate, and a control panel is installed on the outside of the medicine storage cylinder. The control panel is electrically connected to the electrical components inside the device. The storage battery is used to supply power to the electrical components inside the device, thereby realizing centralized control of the electrical components inside the device.

[0012] The advantages of this utility model are:

[0013] 1. This utility model starts a servo motor, whose output end rotating shaft drives the worm gear to rotate. The rotation of the worm gear drives the worm wheel to rotate, which in turn causes the threaded rod to rotate. The connecting rod moves vertically up and down along the guide rod. The connecting rod drives the piston plate to move up and down synchronously in the straight pipe. When the trees are tall, the threaded rod drives the piston plate to rise, expanding the spray coverage of the spray nozzle. When the trees are short, the piston plate descends, reducing the spray area. This achieves precise adjustment of the spray height, allowing the pesticide to be sprayed concentrated on the parts of the trees that need to be treated, reducing pesticide waste.

[0014] 2. By holding the handle, manually pull the slide plate upwards or downwards. The slide plate slides along the T-shaped rod. During this process, the spring is stretched or compressed, and the slide plate drives the bottom stirring motor to move up and down. The stirring motor starts, and its output shaft rotates. The stirring blades agitate the pesticide solution in the storage tank. At the same time, the scraper removes pesticide stains or sediments adhering to the tank wall. The combination of the up and down movement of the slide plate and the rotation of the stirring blades creates a three-dimensional and complex flow trajectory of the pesticide solution in the storage tank, breaking the static stratification of the pesticide solution, promoting the full integration of different components, ensuring uniform concentration of the sprayed pesticide solution, and improving the prevention and control effect. 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 is a schematic diagram of the intermediate axis side view of the present invention;

[0017] Figure 2 is a rear view schematic diagram of the spray device for controlling forest pests and diseases;

[0018] Figure 3 is a cross-sectional schematic diagram of a forest tree pest and disease control spraying device;

[0019] Figure 4 is a schematic diagram of the structure of the spray assembly adapted to trees of different heights;

[0020] Figure 5 is a schematic diagram of the drug mixing component.

[0021] In the diagram: 1. Base plate; 2. Straight pipe; 3. Spray nozzle; 4. Piston plate; 5. Connecting rod; 6. Mounting frame; 7. Threaded rod; 8. Worm gear; 9. Limiting plate; 10. Guide rod; 11. Servo motor; 12. Rotating shaft; 13. Worm gear; 14. Medicine storage cylinder; 15. Feed pipe; 16. Conveying pipe; 17. Pump; 18. Connecting pipe; 19. T-bar; 20. Slide plate; 21. Handle; 22. Spring; 23. Stirring motor; 24. Rotating shaft; 25. Stirring blade; 26. Scraper; 27. Push handle; 28. Caster wheel; 29. ​​Storage battery; 30. Control panel. 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] Refer to Figures 1 - 4. A spray device for preventing and controlling forest pests and diseases includes a bottom plate 1. At one end of the top side of the bottom plate 1, a straight pipe 2 is installed. A number of spray nozzles 3 are equidistantly installed on the outer side of the straight pipe 2. A piston plate 4 is slidably installed inside the straight pipe 2. The radius of the piston plate 4 is equal to the inner diameter of the straight pipe 2. A connecting rod 5 is installed on the top side of the piston plate 4. The connecting rod 5 is in a "J" shape. An installation frame 6 is installed on the top side of the bottom plate 1. A threaded rod 7 is rotatably installed on the bottom side of the installation frame 6. A worm gear 8 is installed on the outer side of the bottom end of the threaded rod 7. A guide rod 10 is installed on the top side of the installation frame 6. A limiting plate 9 is installed at the top end of the guide rod 10. The top end of the threaded rod 7 is rotatably installed inside the bottom side of the limiting plate 9. A servo motor 11 is installed on one side of the installation frame 6. A rotating shaft 12 is installed at the output end of the servo motor 11. A worm 13 is installed on the outer side of the rotating shaft 12. The worm gear 8 and the worm 13 are meshed with each other. One end of the connecting rod 5 slidably penetrates through the straight pipe 2 and is movably installed on the outer sides of the guide rod 10 and the threaded rod 7;

[0024] At the other end of the top side of the bottom plate 1, a medicine storage cylinder 14 is installed. A feed pipe 15 is installed on the top side of the medicine storage cylinder 14. One side of the bottom end of the medicine storage cylinder 14 is connected with a delivery pipe 16. A pump 17 is installed on the top side of the bottom plate 1. The input end of the pump 17 is connected with one end of the delivery pipe 16 in a matching manner. The output end of the pump 17 is connected with a connecting pipe 18. One end of the connecting pipe 18 is communicated with the bottom end of the straight pipe 2;

[0025] A push handle 27 is installed on one side of the bottom plate 1. Universal wheels 28 are assembled at the four corner positions of the bottom side of the bottom plate 1;

[0026] A storage battery 29 is installed on the top side of the base plate 1, and a control panel 30 is installed on the outside of the medicine storage cylinder 14. The control panel 30 is electrically connected to the electrical components inside the device, and the storage battery 29 is used to supply power to the electrical components inside the device. During operation, in practical applications, it is impossible to adjust the spraying area according to the height of the trees. The spraying height is higher than the actual height of the trees, and a large amount of medicine will be sprayed directly into the ineffective space above the canopy, resulting in waste of medicine. When the servo motor 11 is started, its output end rotating shaft 12 drives the worm gear 13 to rotate. Since the worm wheel 8 and the worm gear 13 mesh with each other, the rotation of the worm gear 13 drives the worm gear 13 to rotate. The rotating worm gear 8 causes the threaded rod 7 to rotate. When the threaded rod 7 rotates, the connecting rod 5 moves vertically up and down along the guide rod 10. The connecting rod 5 drives the piston plate 4 to move up and down synchronously inside the straight pipe 2. Since the radius of the piston plate 4 is equal to the inner diameter of the straight pipe 2, the height of the spray nozzle 3 from the ground can be changed. When the trees are tall, the servo motor 11 rotates forward, and the threaded rod 7 drives the piston plate 4 to rise, expanding the spray coverage of the spray nozzle 3. When the trees are short, the servo motor 11 rotates in reverse, and the piston plate 4 descends, reducing the spray area. This achieves precise adjustment of the spray height, allowing the pesticide to be sprayed on the parts of the trees that need to be treated, reducing pesticide waste.

[0027] During spraying, the operator moves the device using the push handle 27 and the casters 28. At the same time, the pump 17 is started, drawing the well-stirred insect repellent from the storage cylinder 14 through the delivery pipe 16. The drawn insect repellent enters the connecting pipe 18 through the output end of the pump 17, and is then transported to the bottom of the straight pipe 2 through the connecting pipe 18. The insect repellent rises in the straight pipe 2 and is sprayed out in a mist form through the equally spaced spray nozzles 3, covering the target forest area.

[0028] Please refer to Figures 1, 2, 3, and 5. Two T-shaped rods 19 are symmetrically installed on the top side of the medicine storage cylinder 14. A sliding plate 20 is slidably installed on the outer side of the T-shaped rods 19. A handle 21 is installed on the top side of the sliding plate 20. Two springs 22 are symmetrically fixed between the sliding plate 20 and the medicine storage cylinder 14. The springs 22 are respectively sleeved on the outer side of the T-shaped rods 19.

[0029] A stirring motor 23 is installed on the bottom side of the slide plate 20. A rotating shaft 24 is installed at the output end of the stirring motor 23. The rotating shaft 24 extends movably through to the bottom end of the storage cylinder 14. Four sets of stirring blades 25, each consisting of three blades, are equidistantly installed on the outer side of the rotating shaft 24. Two scrapers 26 are symmetrically installed at the top of the rotating shaft 24, and both scrapers 26 are in contact with the inner wall of the storage cylinder 14. During operation, in the prevention and control of forest pests and diseases in apple trees, the precise application of pesticides controls the spread of pests and diseases and reduces tree diseases. Therefore, a spraying device is required. Uneven mixing of pesticides and water will reduce the effectiveness of the pesticides and the control of pests and diseases. Water and pesticides are injected into the storage cylinder 14 through the feed pipe 15. The operator holds the handle 21. Manually pull the slide plate 20 up or down. The slide plate 20 slides along the T-shaped rod 19. During this process, the spring 22 is stretched or compressed. The slide plate 20 drives the stirring motor 23 at the bottom to move up and down. After the stirring motor 23 is started, the shaft 24 at its output end rotates at high speed, driving the four sets of stirring blades 25 to stir the pesticide in the storage cylinder 14, so that the pesticide is mixed evenly. At the same time, the scraper 26 moves close to the inner wall of the storage cylinder 14 to scrape off the pesticide stains or sediments attached to the cylinder wall, so as to avoid pesticide residue affecting the mixing effect. The up and down movement of the slide plate 20 and the rotation of the stirring blades 25 combine to make the pesticide form a three-dimensional and complex flow trajectory in the storage cylinder 14, breaking the static stratification of the pesticide, promoting the full integration of different components, ensuring the uniform concentration of the sprayed pesticide, and improving the control effect.

[0030] Working principle: Water and pesticide are injected into the storage cylinder 14 through the feed pipe 15. The operator holds the handle 21 and manually pulls the slide plate 20 up or down. The slide plate 20 slides along the T-shaped rod 19. During this process, the spring 22 is stretched or compressed. The slide plate 20 drives the bottom stirring motor 23 to move up and down. After the stirring motor 23 is started, its output shaft 24 rotates at high speed, driving the four sets of stirring blades 25 to stir the pesticide in the storage cylinder 14, so that the pesticide is mixed evenly. At the same time, the scraper 26 moves close to the inner wall of the storage cylinder 14 to scrape off the pesticide stains or sediments attached to the cylinder wall, so as to avoid pesticide residue affecting the mixing effect. The up and down movement of the slide plate 20 and the rotation of the stirring blades 25 combine to form a three-dimensional and complex flow trajectory of the pesticide in the storage cylinder 14, breaking the static stratification of the pesticide, promoting the full integration of different components, ensuring the uniform concentration of the sprayed pesticide, and improving the control effect.

[0031] When the servo motor 11 is started, its output shaft 12 drives the worm gear 13 to rotate. Since the worm wheel 8 and the worm gear 13 mesh with each other, the rotation of the worm gear 13 drives the worm wheel 8 to rotate, which in turn causes the threaded rod 7 to rotate. When the threaded rod 7 rotates, the connecting rod 5 moves vertically up and down along the guide rod 10. The connecting rod 5 drives the piston plate 4 to move up and down synchronously inside the straight pipe 2. Since the radius of the piston plate 4 is equal to the inner diameter of the straight pipe 2, the height of the spray nozzle 3 from the ground can be changed. When the trees are tall, the servo motor 11 rotates forward, and the threaded rod 7 drives the piston plate 4 to rise, expanding the spray coverage of the spray nozzle 3. When the trees are short, the servo motor 11 rotates in reverse, and the piston plate 4 descends, reducing the spray area. This achieves precise adjustment of the spray height, allowing the pesticide to be sprayed concentrated on the parts of the trees that need to be treated, reducing pesticide waste.

[0032] During spraying, the operator moves the device using the push handle 27 and the casters 28. At the same time, the pump 17 is started, drawing the well-stirred insect repellent from the storage cylinder 14 through the delivery pipe 16. The drawn insect repellent enters the connecting pipe 18 through the output end of the pump 17, and is then transported to the bottom of the straight pipe 2 through the connecting pipe 18. The insect repellent rises in the straight pipe 2 and is sprayed out in a mist form through the equally spaced spray nozzles 3, covering the target forest area.

[0033] 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.

[0034] 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 spraying device for controlling forest tree diseases and pests, characterized in that: It includes a bottom plate (1). At one end of the top side of the bottom plate (1), a straight pipe (2) is installed. A number of spray nozzles (3) are equidistantly installed on the outer side of the straight pipe (2). A piston plate (4) is slidably installed inside the straight pipe (2). The radius of the piston plate (4) is equal to the inner diameter of the straight pipe (2). A connecting rod (5) is installed on the top side of the piston plate (4). The connecting rod (5) is in a "U" shape. An installation frame (6) is installed on the top side of the bottom plate (1). A threaded rod (7) is rotatably installed on the bottom side of the installation frame (6). A worm gear (8) is installed on the outer side of the bottom end of the threaded rod (7). A guide rod (10) is installed on the top side of the installation frame (6). A limiting plate (9) is installed at the top end of the guide rod (10). The top end of the threaded rod (7) is rotatably installed inside the bottom side of the limiting plate (9). A servo motor (11) is installed on one side of the installation frame (6). A rotating shaft (12) is installed at the output end of the servo motor (11). A worm (13) is installed on the outer side of the rotating shaft (12). The worm gear (8) and the worm (13) are meshed with each other. One end of the connecting rod (5) slidably penetrates through the straight pipe (2) and is movably installed on the outer sides of the guide rod (10) and the threaded rod (7).

2. The forest pest control spraying device according to claim 1, characterized in that: At the other end of the top side of the bottom plate (1), a medicine storage cylinder (14) is installed. A feed pipe (15) is installed on the top side of the medicine storage cylinder (14). One side of the bottom end of the medicine storage cylinder (14) is connected with a delivery pipe (16). A pump (17) is installed on the top side of the bottom plate (1). The input end of the pump (17) is cooperatively connected with one end of the delivery pipe (16). The output end of the pump (17) is connected with a connecting pipe (18). One end of the connecting pipe (18) is communicated with the bottom end of the straight pipe (2).

3. The forest tree disease and pest control spraying device according to claim 2, characterized in that: Two T-shaped rods (19) are symmetrically installed on the top side of the medicine storage cylinder (14). A sliding plate (20) is slidably installed on the outer sides of the T-shaped rods (19) together. A handle (21) is installed on the top side of the sliding plate (20). Two springs (22) are symmetrically fixedly connected between the sliding plate (20) and the medicine storage cylinder (14). The springs (22) are respectively sleeved on the outer sides of the T-shaped rods (19).

4. The forest tree disease and pest control spraying device according to claim 3, characterized in that: A stirring motor (23) is installed on the bottom side of the sliding plate (20). A rotating shaft (24) is installed at the output end of the stirring motor (23). The rotating shaft (24) movably penetrates through to the bottom end of the medicine storage cylinder (14). Four groups of stirring blades (25) with three in each group are equidistantly installed on the outer side of the rotating shaft (24). Two scraping plates (26) are symmetrically installed at the top end of the rotating shaft (24). The scraping plates (26) are both in contact with the inner wall of the medicine storage cylinder (14).

5. A forest tree disease and pest control spraying device according to claim 4, characterized in that: A push handle (27) is installed on one side of the bottom plate (1). Universal wheels (28) are assembled at the four corner positions of the bottom side of the bottom plate (1).

6. The forest pest control spraying device according to claim 5, characterized in that: A storage battery (29) is installed on the top side of the base plate (1), and a control panel (30) is installed on the outside of the medicine storage cylinder (14). The control panel (30) is electrically connected to the electrical components inside the device, and the storage battery (29) is used to supply power to the electrical components inside the device.

Citation Information

Patent Citations

  • Pesticide spraying device for tree planting

    CN221532628U