Unmanned aerial vehicle spraying device

By designing a pesticide storage tank, a pesticide inlet, and a servo motor-driven spray pipe structure on the drone, the problem of low spraying efficiency of existing drones has been solved, enabling larger-area crop coverage and efficient spraying.

CN223791734UActive Publication Date: 2026-01-13HUZHOU 3 30 TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520477336.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2026-01-13
Estimated Expiration
2035-03-18

AI Technical Summary

Technical Problem

Existing drone spraying devices have low spraying efficiency and cannot effectively cover the entire crop area, requiring multiple sprays to complete the operation.

Method used

A drone spraying device was designed, comprising a medicine storage tank, a medicine inlet cylinder, a spraying mechanism, and a spraying pipe driven by a servo motor. The angle of the spraying pipe can be adjusted by the servo motor driving gear transmission to increase the spraying area, and the flow rate of the medicine can be controlled by an adjusting valve.

Benefits of technology

This improves the efficiency of drone spraying, enabling it to cover a larger crop area in a single flight and reduce the number of spraying operations.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223791734U_ABST
Patent Text Reader

Abstract

The unmanned aerial vehicle spraying device comprises a vehicle body and placing frames, the placing frames are arranged at the front end and the rear end of the vehicle body, paddle parts are arranged at the four corners of the periphery of the vehicle body, a placing groove is formed in the middle of the surface of the vehicle body, two cutting grooves are formed in the surface of the vehicle body, and the two cutting grooves are located in the two sides of the placing groove. When the pesticide spraying machine is used, pesticide is added through the two pesticide inlet cylinders, pesticide liquid enters the pesticide storage box through the pesticide inlet pipe to be mixed, the mixed pesticide liquid is stored in the pesticide storage box, the paddle part is started to enable the machine body to fly and move to the position above plants to spray the plants, and the flow speed of the pesticide liquid is controlled through the adjusting valve. The pesticide liquid flows into the two pesticide spraying pipes through the two connecting pipes and is sprayed to the plants through the spraying heads, meanwhile, the servo motor is started to drive the first gear to rotate in a reciprocating mode, the first gear drives the second gear to rotate in a reciprocating mode, and the second gear drives the rotating shaft and the pesticide spraying pipes to rotate by a certain angle, so that the spraying area is increased, and the spraying efficiency is improved.
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Description

Technical Field

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

[0002] With the development of drones, they are being applied in various fields. For example, in agriculture, drones equipped with spraying devices have become a new type of agricultural tool, replacing traditional labor, achieving high-efficiency work, and reducing contact between people and pesticides.

[0003] In existing drones, the spraying mechanism is mostly designed to be fixed. When spraying crops, it can only spray a fixed area of ​​crops and requires more sprays to complete the entire spraying operation, resulting in low spraying efficiency.

[0004] Therefore, it is necessary to provide a drone spraying device to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a drone spraying device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A drone spraying device includes a body and a mounting frame. The mounting frame is located at the front and rear ends of the body. Propeller sections are located at the four corners of the body. A placement groove is formed in the center of the body surface. Two grooves are formed on the body surface, located on both sides of the placement groove. A medicine storage tank is placed inside the placement groove, with both ends of the medicine storage tank engaged within the grooves. Two medicine inlet cylinders are located on the upper surface of the body. A medicine inlet pipe is provided between the bottom of the medicine inlet cylinders and the top of the medicine storage tank. The lower end of the medicine inlet pipe penetrates the tank cover and extends into the medicine storage tank. A medicine outlet pipe is located at the bottom of the medicine storage tank, communicating with the interior of the medicine storage tank. A regulating valve is located inside the medicine outlet pipe. Two through holes are formed on the outer circumference of the medicine outlet pipe, directly opposite each other. Two spraying mechanisms are arranged parallel to each other at the bottom of the body. Connecting pipes are provided between each of the two spraying mechanisms and the two through holes of the medicine outlet pipe.

[0007] As a preferred embodiment of this utility model, the spraying mechanism includes a first support block and a second support block. The first support block is fixedly installed at the bottom of the machine body, and the second support block is fixedly installed at the bottom of the machine body and parallel to the first support block. A rotating hole is opened on the side wall of the first support block. A spraying pipe is rotatably installed between the first support block and the second support block. One end of the spraying pipe is rotatably installed in the rotating hole. An insertion hole is opened on the side wall of the spraying pipe, and a rotating shaft is inserted into the insertion hole. A second gear is fixedly sleeved on the end of the rotating shaft away from the spraying pipe. A connecting hole is opened on the side wall of the first support block, and a servo motor is installed on the side wall of the first support block. The output end of the servo motor passes through the connecting hole and extends to the outside of the first support block. A first gear is fixedly installed on the output end of the servo motor. The first gear meshes with the second gear for transmission. A drug inlet hole is opened in the middle of the outer circumference of the spraying pipe. One end of the connecting pipe passes through the drug inlet hole and communicates with the inside of the spraying pipe. Multiple drug outlets are opened on the outer circumference of the spraying pipe, and each of the multiple drug outlets is equipped with a nozzle.

[0008] As a preferred technical solution of this utility model, the second support block is similar in structure to the first support block. The first support block has two locking holes on its top, and the first support block is locked to the bottom of the machine body by means of screws through the locking holes.

[0009] As a preferred embodiment of this utility model, a protective cover is provided at the bottom of the machine body, and the protective cover is located outside the first gear and the second gear.

[0010] As a preferred embodiment of this utility model, the drug outlet and the drug inlet are distributed perpendicularly.

[0011] As a preferred embodiment of this utility model, the top of the medicine storage box is provided with a box cover.

[0012] As a preferred embodiment of this utility model, the two drug inlet cylinders are symmetrically arranged about the placement groove, and the top of each drug inlet cylinder is threadedly connected with a cylinder cap.

[0013] As a preferred embodiment of this utility model, the outer circumferential surface of the cylinder cover is provided with multiple anti-slip patterns.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] The present invention discloses a drone spraying device. In use, the device adds pesticide through two inlet cylinders, allowing the pesticide solution to enter the storage tank via the inlet pipe for mixing. The cylinder caps are then tightened to seal the openings of the inlet cylinders, and the mixed pesticide solution is stored in the storage tank. The propellers are activated, propelling the drone over the plants for spraying. A regulating valve in the outlet pipe is opened to control the flow rate of the pesticide solution, which flows through two connecting pipes into two spray pipes. The solution is then sprayed onto the plants through nozzles. Simultaneously, a servo motor is activated, driving a first gear to reciprocate. This first gear, in turn, drives a second gear to reciprocate, which in turn rotates the shaft and spray pipes by a certain angle, thereby increasing the spraying area and improving spraying efficiency. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is an isometric view of the overall structure of this utility model;

[0019] Figure 3 This is the front view of this utility model;

[0020] Figure 4 This is a three-dimensional schematic diagram of the spraying mechanism structure of this utility model;

[0021] Figure 5 This is a three-dimensional exploded view of the spraying mechanism structure of this utility model;

[0022] Figure 6 This is a three-dimensional schematic diagram of the first support block structure of this utility model.

[0023] In the diagram: 1. Body; 101. Placement slot; 102. Cutting slot; 2. Placement frame; 3. Paddle section; 4. Inlet cartridge; 5. Storage tank; 6. Tank cover; 7. Spraying mechanism; 71. First support block; 711. Locking hole; 712. Rotary hole; 713. Connecting hole; 72. Second support block; 73. Spraying pipe; 731. Inlet hole; 732. Outlet; 733. Insertion hole; 74. Nozzle; 75. Servo motor; 76. First gear; 77. Second gear; 78. Rotating shaft; 79. Protective cover; 8. Inlet pipe; 9. Outlet pipe; 10. Connecting pipe; 11. Cylinder cover; 111. Anti-slip texture. Detailed Implementation

[0024] The embodiments of this utility model will now be described with reference to the accompanying drawings. In this process, to ensure clarity and convenience, we may exaggerate the width of lines or the size of constituent elements in the drawings.

[0025] Furthermore, the terms used below are defined based on the functions of this utility model and may vary depending on the user's or operator's intent or convention. Therefore, these terms are defined based on the entire contents of this specification.

[0026] like Figures 1 to 6 As shown, a drone spraying device includes a body 1 and a mounting frame 2. The mounting frame 2 is located at the front and rear ends of the body 1 to support the body 1 on the ground. Propeller blades 3 are located at each of the four corners of the body 1 to drive the entire body 1 in flight. A placement groove 101 is formed in the center of the surface of the body 1. Two grooves 102 are formed on the surface of the body 1, located on both sides of the placement groove 101. A medicine storage tank 5 is placed inside the placement groove 101, with both ends of the medicine storage tank 5 engaged within the grooves 102. A lid 6 is provided on the top of the medicine storage tank 5. Two medicine inlet cylinders 4 are provided on the upper surface of the body 1, symmetrically arranged about the placement groove 101. A medicine inlet pipe 8 is provided between the bottom of the 4 and the top of the medicine storage tank 5. The lower end of the medicine inlet pipe 8 passes through the tank cover 6 and extends into the medicine storage tank 5. The top of the medicine inlet cylinder 4 is threadedly connected to a cylinder cover 11. Multiple anti-slip textures 111 are provided on the outer circumference of the cylinder cover 11. A medicine outlet pipe 9 is provided at the bottom of the medicine storage tank 5. The medicine outlet pipe 9 is connected to the inside of the medicine storage tank 5. A regulating valve is provided inside the medicine outlet pipe 9 to control the flow rate of the medicine liquid. Two through holes are opened on the outer circumference of the medicine outlet pipe 9. Two spraying mechanisms 7 are arranged parallel to each other at the bottom of the machine body 1. A connecting pipe 10 is provided between each of the two spraying mechanisms 7 and the two through holes of the medicine outlet pipe 9, and the medicine outlet pipe 9 is connected to the spraying mechanism 7 through the connecting pipe 10.

[0027] like Figures 4 to 6As shown, the spraying mechanism 7 includes a first support block 71 and a second support block 72. The second support block 72 has a similar structure to the first support block 71. The first support block 71 has two locking holes 711 on its top. The first support block 71 is locked to the bottom of the machine body 1 by screws through the locking holes 711. The second support block 72 is fixedly installed at the bottom of the machine body 1 and is arranged parallel to the first support block 71. The side wall of the first support block 71 has a rotating hole 712. A spray pipe 73 is rotatably arranged between the first support block 71 and the second support block 72. One end of the spray pipe 73 is rotatably installed in the rotating hole 712. The side wall of the spray pipe 73 has an insertion hole. A hole 733 is provided, into which a rotating shaft 78 is inserted. A second gear 77 is fixedly fitted at the end of the rotating shaft 78 away from the spray pipe 73. A connecting hole 713 is provided on the side wall of the first support block 71. A servo motor 75 is provided on the side wall of the first support block 71. The output end of the servo motor 75 passes through the connecting hole 713 and extends to the outside of the first support block 71. A first gear 76 is fixedly installed on the output end of the servo motor 75. The first gear 76 meshes with the second gear 77 for transmission. A protective cover 79 is provided at the bottom of the machine body 1. The protective cover 79 is located outside the first gear 76 and the second gear 77 to protect them.

[0028] The spray pipe 73 has a drug inlet hole 731 in the middle of its outer circumference. One end of the connecting pipe 10 passes through the drug inlet hole 731 and communicates with the inside of the spray pipe 73. Multiple drug outlets 732 are provided on the outer circumference of the spray pipe 73. The drug outlets 732 are distributed perpendicularly to the drug inlet hole 731. Each of the multiple drug outlets 732 is provided with a nozzle 74.

[0029] Specifically, during use, the pesticide is added through two inlet cylinders 4, allowing the pesticide solution to enter the storage tank 5 via the inlet pipe 8 for mixing. The cylinder cap 11 is then tightened to seal the opening of the inlet cylinder 4, and the mixed pesticide solution is stored in the storage tank 5. The propeller 3 is activated to move the machine body 1 over the plants for spraying. The regulating valve in the outlet pipe 9 is opened to control the flow rate of the pesticide solution. The pesticide solution flows through two connecting pipes 10 into two spray pipes 73, and is sprayed onto the plants through the nozzles 74. Simultaneously, the servo motor 75 is activated to drive the first gear 76 to reciprocate, which in turn drives the second gear 77 to reciprocate. The second gear 77 then drives the rotating shaft 78 and the spray pipe 73 to rotate at a certain angle, thereby increasing the spraying area and improving spraying efficiency.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A drone spraying device, comprising a body (1) and a mounting frame (2), wherein the mounting frame (2) is disposed at both ends of the body (1), and each of the four corners of the body (1) is provided with a propeller (3), characterized in that: The machine body (1) has a placement groove (101) in the middle of its surface. Two grooves (102) are also formed on the surface of the machine body (1), located on either side of the placement groove (101). A medicine storage tank (5) is placed inside the placement groove (101), with both ends of the medicine storage tank (5) engaged within the grooves (102). Two medicine inlet cylinders (4) are provided on the upper surface of the machine body (1). A medicine inlet pipe (8) is provided between the bottom of the medicine inlet cylinder (4) and the top of the medicine storage tank (5). The lower end of the inlet pipe (8) penetrates through the box cover (6) and extends into the medicine storage box (5). The bottom of the medicine storage box (5) is provided with an outlet pipe (9). The outlet pipe (9) is connected to the inside of the medicine storage box (5). An adjustment valve is provided inside the outlet pipe (9). Two through holes are opened on the outer circumference of the outlet pipe (9). Two spraying mechanisms (7) are arranged in parallel at the bottom of the machine body (1). A connecting pipe (10) is provided between the two spraying mechanisms (7) and the two through holes of the outlet pipe (9).

2. The drone spraying device according to claim 1, characterized in that: The spraying mechanism (7) includes a first support block (71) and a second support block (72). The first support block (71) is fixedly installed at the bottom of the machine body (1), and the second support block (72) is fixedly installed at the bottom of the machine body (1) and parallel to the first support block (71). A rotating hole (712) is provided on the side wall of the first support block (71). A spraying pipe (73) is rotatably installed between the first support block (71) and the second support block (72). One end of the spraying pipe (73) is rotatably installed in the rotating hole (712). An insertion hole (733) is provided on the side wall of the spraying pipe (73). A rotating shaft (78) is inserted into the insertion hole (733). A second gear (77) is fixedly sleeved on the end of the rotating shaft (78) away from the spraying pipe (73). The first support block (71) has a connecting hole (713) on its side wall. A servo motor (75) is provided on the side wall of the first support block (71). The output end of the servo motor (75) passes through the connecting hole (713) and extends to the outside of the first support block (71). A first gear (76) is fixedly provided on the output end of the servo motor (75). The first gear (76) meshes with a second gear (77) for transmission. A drug inlet hole (731) is provided in the middle of the outer circumference of the spray pipe (73). One end of the connecting pipe (10) passes through the drug inlet hole (731) and communicates with the inside of the spray pipe (73). Multiple drug outlets (732) are provided on the outer circumference of the spray pipe (73). A nozzle (74) is provided in each of the multiple drug outlets (732).

3. The drone spraying device according to claim 2, characterized in that: The second support block (72) has a similar structure to the first support block (71). The first support block (71) has two locking holes (711) on its top. The first support block (71) is locked to the bottom of the body (1) by means of the locking holes (711) and screws.

4. The drone spraying device according to claim 2, characterized in that: The bottom of the body (1) is provided with a protective cover (79), which is located outside the first gear (76) and the second gear (77).

5. The drone spraying device according to claim 2, characterized in that: The drug outlet (732) and the drug inlet (731) are distributed perpendicularly.

6. The drone spraying device according to claim 1, characterized in that: The medicine storage box (5) is equipped with a box cover (6) on top.

7. The drone spraying device according to claim 1, characterized in that: The two feeding cylinders (4) are symmetrically arranged about the placement groove (101), and the top of the feeding cylinder (4) is threadedly connected with a cylinder cover (11).

8. The drone spraying device according to claim 7, characterized in that: The outer circumferential surface of the cylinder cover (11) is provided with multiple anti-slip textures (111).