Uniform spraying device for large agricultural and forestry plant protection drones

Abstract

This utility model discloses a uniform spraying device for a large agricultural and forestry plant protection drone, comprising a drone body, with wings fixedly connected to the opposite sides of the drone body. Two outer sleeve columns are fixedly connected to the bottom of each wing, and an inner sleeve column is slidably connected inside each outer sleeve column. This utility model, by incorporating a servo motor, threaded rod, moving block, first spray pipe, guide block, second spray pipe, and sliding rod, uses the threaded rod to drive the moving block, which in turn drives the first spray pipe. Simultaneously, the guide block guides the first spray pipe outward by sliding on the sliding rod. Then, an infusion pump delivers the pesticide solution from the storage tank into the second and first spray pipes through infusion and distribution pipes, respectively. The solution is then sprayed out through multiple second and first spray heads, expanding the pesticide coverage area, reducing the number of times the drone body retraces its movements, and improving spraying efficiency.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a uniform spraying device for a large agricultural and forestry plant protection UAV. Background Technology

[0002] Drone spraying technology is an important plant protection method in modern agriculture. Drones equipped with spraying equipment can be used to carry out precise spraying operations on target areas such as farmland, orchards, and grasslands, thereby improving the efficiency of agricultural operations.

[0003] However, most existing drones have limited coverage areas for spraying pesticides and require multiple round trips, which affects spraying efficiency. Therefore, a uniform spraying device for large agricultural and forestry plant protection drones is proposed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a uniform spraying device for large-scale agricultural and forestry plant protection drones.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a uniform spraying device for a large agricultural and forestry plant protection drone, comprising a drone body, wings fixedly connected to opposite sides of the drone body, two outer sleeve columns fixedly connected to the bottom of each wing, an inner sleeve column slidably connected inside each outer sleeve column, each outer sleeve column and its corresponding inner sleeve column being fastened together by bolts, a liquid storage tank fixedly connected to the bottom of two inner sleeve columns on the same side, an inlet pipe fixedly connected to one side of each liquid storage tank, two fixed plates fixedly connected to the bottom of each liquid storage tank, a sliding groove provided on one side of the two opposite fixed plates, and a movable structure provided below each liquid storage tank;

[0006] The movable structure includes a second spray pipe that is fixedly connected between two corresponding fixed plates, and a plurality of second spray heads are fixedly connected to the bottom of the second spray pipe.

[0007] As a further description of the above technical solution:

[0008] A threaded rod is rotatably connected between the two fixed plates, and a servo motor is fixedly connected to one side of one of the fixed plates. The output shaft of the servo motor is fixedly connected to one end of the threaded rod.

[0009] As a further description of the above technical solution:

[0010] A movable block is threadedly connected to the threaded rod. A first spray pipe is fixedly connected to one side of the movable block. The first spray pipe is slidably connected in a corresponding sliding groove. Multiple first spray heads are fixedly connected to the bottom of the first spray pipe.

[0011] As a further description of the above technical solution:

[0012] A sliding rod is fixedly connected to one side of each of the two fixed plates. A guide block is slidably connected to the sliding rod, and one side of the guide block is fixedly connected to one side of the first spray pipe.

[0013] As a further description of the above technical solution:

[0014] A limiting post is fixedly connected to the upper surface of the first spray pipe, and a guide groove is provided on one side of the limiting post.

[0015] As a further description of the above technical solution:

[0016] The bottom of the liquid storage tank is fixedly connected to a fixed frame, and a sliding column is fixedly connected inside the fixed frame. The sliding column is slidably connected in the guide groove.

[0017] As a further description of the above technical solution:

[0018] An infusion pump is fixedly connected to the bottom of the storage tank, and an infusion tube is fixedly connected to the outlet of the infusion pump. One end of the infusion tube is fixedly connected to the upper surface of the second spray pipe, and a distribution pipe is fixedly connected to the side wall of the infusion tube. The distribution pipe is slidably connected to one side of the first spray pipe, and a sealing ring is provided at the sliding connection between the distribution pipe and the first spray pipe.

[0019] This utility model has the following beneficial effects:

[0020] 1. Compared with existing technologies, the uniform spraying device of this large agricultural and forestry plant protection drone is equipped with a servo motor, a threaded rod, a moving block, a first spraying pipe, a guide block, a second spraying pipe, and a sliding rod. The servo motor drives the threaded rod to rotate, the threaded rod drives the moving block to move, and the moving block drives the first spraying pipe to move. At the same time, the guide block slides on the sliding rod to guide the first spraying pipe to move outward. Then, the infusion pump delivers the liquid medicine in the storage tank into the second spraying pipe and the first spraying pipe through the infusion pipe and the distribution pipe, respectively. Then, it is sprayed out through multiple second spray heads and the first spray head, which expands the coverage area of ​​the liquid medicine, reduces the number of times the drone body goes back and forth, and improves the spraying efficiency.

[0021] 2. Compared with existing technologies, the uniform spraying device of this large agricultural and forestry plant protection drone, by setting up limiting posts, fixed frames and sliding posts, etc., when the first spraying pipe extends or retracts, the first spraying pipe drives the limiting post to move. The limiting post slides on the sliding post through the guide groove to limit and guide the first spraying pipe, reducing the risk of the first spraying pipe bending and deforming due to bumps or its own weight when retracting. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of a uniform spraying device for a large agricultural and forestry plant protection drone proposed in this utility model.

[0023] Figure 2 This is a schematic diagram of the outer column of a uniform spraying device for a large agricultural and forestry plant protection drone proposed in this utility model.

[0024] Figure 3 This is a schematic diagram of the liquid storage tank of a uniform spraying device for a large agricultural and forestry plant protection drone proposed in this utility model.

[0025] Figure 4 This is a schematic diagram of the moving structure of a uniform spraying device for a large agricultural and forestry plant protection drone proposed in this utility model.

[0026] Figure 5 This is an exploded view of the moving structure of a uniform spraying device for a large agricultural and forestry plant protection drone proposed in this utility model.

[0027] Legend:

[0028] 1. UAV body; 2. Wing; 3. Outer sleeve column; 4. Inner sleeve column; 5. Liquid storage tank; 6. Liquid inlet pipe; 7. Fixing plate; 701. Sliding groove; 8. Moving structure; 801. Servo motor; 802. Threaded rod; 803. Moving block; 804. First spray pipe; 805. Guide block; 806. Second spray pipe; 807. Limiting column; 808. Fixing frame; 809. Sliding column; 8010. Sliding rod; 9. Infusion pump; 10. Infusion pipe; 11. Dispensing pipe. Detailed Implementation

[0029] 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 protection scope of the present utility model.

[0030] Reference Figures 1 to 5This utility model provides a uniform spraying device for a large agricultural and forestry plant protection drone: It includes a drone body 1, with wings 2 fixedly connected to opposite sides of the drone body 1. Two outer sleeve posts 3 are fixedly connected to the bottom of each wing 2. An inner sleeve post 4 is slidably connected inside each outer sleeve post 3. Each outer sleeve post 3 and its corresponding inner sleeve post 4 are fastened together by bolts. A liquid storage tank 5 is fixedly connected to the bottom of the two inner sleeve posts 4 on the same side. An inlet pipe 6 is fixedly connected to one side of each liquid storage tank 5. A delivery pump 9 is fixedly connected to the bottom of the inner side of the liquid storage tank 5. A delivery pipe 10 is fixedly connected to the outlet of the delivery pump 9. One end of the infusion tube 10 is fixedly connected to the upper surface of the second spray pipe 806. A distribution pipe 11 is fixedly connected to the side wall of the infusion tube 10. The distribution pipe 11 is slidably connected to one side of the first spray pipe 804. A sealing ring is provided at the sliding connection between the distribution pipe 11 and the first spray pipe 804. Because the distribution pipe 11 is slidably connected to the first spray pipe 804, the sealing ring reduces the probability of leakage of medicine from the connection between the distribution pipe 11 and the first spray pipe 804. Two fixed plates 7 are fixedly connected to the bottom of each storage tank 5. A sliding groove 701 is opened on one side of the two fixed plates 7 that are far apart. A movable structure 8 is provided below each storage tank 5.

[0031] To expand the coverage area, the movable structure 8 includes a second spray pipe 806 fixedly connected between two corresponding fixed plates 7. Multiple second spray heads are fixedly connected to the bottom of the second spray pipe 806. A threaded rod 802 is rotatably connected between the two fixed plates 7. A servo motor 801 is fixedly connected to one side of one of the fixed plates 7. The output shaft of the servo motor 801 is fixedly connected to one end of the threaded rod 802. A moving block 803 is threaded onto the threaded rod 802. A first spray pipe 804 is fixedly connected to one side of the moving block 803. The first spray pipe 804 is slidably connected within a corresponding sliding groove 701. Multiple first spray heads are fixedly connected to the bottom of the first spray pipe 804. The two fixed plates 7 are fixedly connected to opposite sides of the first spray pipe 804. A sliding rod 8010 is slidably connected to a guide block 805. One side of the guide block 805 is fixedly connected to one side of the first spray pipe 804. A servo motor 801 drives a threaded rod 802 to rotate, which in turn drives a moving block 803 to move. The moving block 803 then drives the first spray pipe 804 to move. Simultaneously, the guide block 805 slides on the sliding rod 8010 to guide the first spray pipe 804 to move outward. Then, the infusion pump 9 delivers the liquid medicine in the storage tank 5 into the second spray pipe 806 and the first spray pipe 804 through the infusion pipe 10 and the distribution pipe 11, respectively. The liquid medicine is then sprayed out through multiple second spray heads and the first spray head, expanding the coverage area of ​​the liquid medicine, reducing the number of round trips of the UAV body 1, and improving spraying efficiency.

[0032] To achieve the purpose of limiting and guiding, a limiting post 807 is fixedly connected to the upper surface of the first spray pipe 804. A guide groove is provided on one side of the limiting post 807. A fixed frame 808 is fixedly connected to the bottom of the liquid storage tank 5. A sliding post 809 is fixedly connected inside the fixed frame 808. The sliding post 809 is slidably connected in the guide groove. When the first spray pipe 804 extends or retracts, the first spray pipe 804 drives the limiting post 807 to move. The limiting post 807 slides on the sliding post 809 through the guide groove to limit and guide the first spray pipe 804, reducing the risk of the first spray pipe 804 bending and deforming due to bumps or its own weight when retracting.

[0033] Working principle: Servo motor 801 drives threaded rod 802 to rotate, threaded rod 802 drives moving block 803 to move, moving block 803 drives first spray pipe 804 to move, and at the same time, guide block 805 slides on sliding rod 8010 to guide, so that first spray pipe 804 moves outward. Then, infusion pump 9 delivers the medicine in storage tank 5 into second spray pipe 806 and first spray pipe 804 through infusion pipe 10 and dispensing pipe 11 respectively. Then, it is sprayed out through multiple second spray heads and first spray heads to expand the coverage area of ​​medicine, reduce the number of round trips of UAV body 1, and improve spraying efficiency. When first spray pipe 804 extends or retracts, first spray pipe 804 drives limiting post 807 to move. Limiting post 807 slides on sliding post 809 through guide groove to limit and guide first spray pipe 804, reducing the risk of first spray pipe 804 bending and deforming due to bumps or its own weight when retracting.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A uniform spraying device for a large agricultural and forestry plant protection drone, comprising the drone body (1), characterized in that: The main body (1) of the drone is fixedly connected to wings (2) on opposite sides. Two outer sleeve columns (3) are fixedly connected to the bottom of each wing (2). An inner sleeve column (4) is slidably connected inside each outer sleeve column (3). Each outer sleeve column (3) and the corresponding inner sleeve column (4) are fastened together by bolts. A liquid storage tank (5) is fixedly connected to the bottom of the two inner sleeve columns (4) on the same side. An inlet pipe (6) is fixedly connected to one side of each liquid storage tank (5). Two fixing plates (7) are fixedly connected to the bottom of each liquid storage tank (5). A sliding groove (701) is opened on one side of the two fixing plates (7) that are far apart. A movable structure (8) is provided below each liquid storage tank (5). The movable structure (8) includes a second spray pipe (806) that is fixedly connected between two corresponding fixed plates (7), and a plurality of second spray heads are fixedly connected to the bottom of the second spray pipe (806).

2. The uniform spraying device for a large agricultural and forestry plant protection drone according to claim 1, characterized in that: A threaded rod (802) is rotatably connected between the two fixed plates (7), and a servo motor (801) is fixedly connected to one side of one of the fixed plates (7). The output shaft of the servo motor (801) is fixedly connected to one end of the threaded rod (802).

3. The uniform spraying device for a large agricultural and forestry plant protection drone according to claim 2, characterized in that: A movable block (803) is threadedly connected to the threaded rod (802). A first spray pipe (804) is fixedly connected to one side of the movable block (803). The first spray pipe (804) is slidably connected in the corresponding sliding groove (701). A plurality of first spray heads are fixedly connected to the bottom of the first spray pipe (804).

4. The uniform spraying device for a large agricultural and forestry plant protection drone according to claim 3, characterized in that: The two fixed plates (7) are fixedly connected to a sliding rod (8010) on opposite sides. A guide block (805) is slidably connected to the sliding rod (8010). One side of the guide block (805) is fixedly connected to one side of the first spray pipe (804).

5. The uniform spraying device for a large agricultural and forestry plant protection drone according to claim 3, characterized in that: A limiting post (807) is fixedly connected to the upper surface of the first spray pipe (804), and a guide groove is provided on one side of the limiting post (807).

6. The uniform spraying device for a large agricultural and forestry plant protection drone according to claim 5, characterized in that: The bottom of the liquid storage tank (5) is fixedly connected to a fixed frame (808), and a sliding column (809) is fixedly connected inside the fixed frame (808). The sliding column (809) is slidably connected in the guide groove.

7. The uniform spraying device for a large agricultural and forestry plant protection drone according to claim 3, characterized in that: An infusion pump (9) is fixedly connected to the bottom of the storage tank (5). An infusion pipe (10) is fixedly connected to the outlet of the infusion pump (9). One end of the infusion pipe (10) is fixedly connected to the upper surface of the second spray pipe (806). A distribution pipe (11) is fixedly connected to the side wall of the infusion pipe (10). The distribution pipe (11) is slidably connected to one side of the first spray pipe (804). A sealing ring is provided at the sliding connection between the distribution pipe (11) and the first spray pipe (804).

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