Spraying device of unmanned plant protection machine

By designing a mixing and spraying mechanism on the unmanned plant protection drone, the problem of uneven pesticide mixing was solved, enabling uniform spraying of pesticides and expanding the coverage area, thus improving the effectiveness of plant protection operations.

CN223467317UActive Publication Date: 2025-10-24HUBEI LVSHEN AGRI TECH CO LTD
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Patent Information

Application Number
CN202422785341.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-15
Publication Date
2025-10-24
Estimated Expiration
2034-11-15

AI Technical Summary

Technical Problem

Existing agricultural drones cannot effectively stir the pesticide mixture before spraying, which leads to precipitation and uneven mixing of the pesticide, affecting the application effect.

Method used

A spraying device for an unmanned plant protection drone was designed, comprising a mixing mechanism, a reciprocating mechanism, and a spraying mechanism. The mixing shaft and mixing rod are driven by a motor to mix the pesticide, and the reciprocating screw and transmission mechanism enable the reciprocating movement of the spray head to ensure uniform spraying of the pesticide.

Benefits of technology

It achieves uniform mixing of pesticides, prevents sedimentation, expands the spray coverage area, and improves the efficiency and uniformity of plant protection operations.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model belongs to the technical field of plant protection unmanned aerial vehicle equipment, and particularly relates to a spraying device of an unmanned plant protection machine, which comprises a plant protection unmanned aerial vehicle main body, a liquid storage box and two side boxes are fixedly mounted at the bottom of the plant protection unmanned aerial vehicle main body, and the two sides of the plant protection unmanned aerial vehicle main body are fixedly connected with the corresponding side boxes respectively; a motor is fixedly mounted on the inner wall of the right side of one side box; a stirring mechanism is arranged between the motor and the liquid storage box; and the bottom box is fixedly arranged at the bottom of the liquid storage box. The device is reasonable in design, through the arrangement of the stirring mechanism, various components in liquid can be evenly mixed, precipitation or layering can be prevented, it can be ensured that the components of the sprayed liquid are consistent, and then the purpose of a better plant protection effect is achieved; the spraying head can conduct reciprocating spraying operation within a certain range, the spraying coverage area can be enlarged, and the efficiency and uniformity of plant protection operation are improved.
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Description

Technical Field

[0001] The present application relates to the technical field of plant protection drone equipment, and in particular to a spraying device for an unmanned plant protection drone. Background Art

[0002] As the name suggests, plant protection drones are unmanned aircraft used for agricultural and forestry plant protection operations. This type of drone consists of three parts: a flight platform (fixed-wing, single-rotor, multi-rotor), a GPS flight control, and a spraying mechanism. Spraying operations are carried out through ground remote control or GPS flight control, and can spray pesticides, seeds, powders, etc.

[0003] Currently, Chinese patent publication number CN205409295U discloses an avoidable spraying device for an unmanned plant protection drone. The device consists of a central horizontal bar, left and right side bars, a connector, a connecting cross plate, and a connecting bar. When the sprayer boom of this device strikes a plant, the left and right side bars automatically move out of the way, preventing damage.

[0004] In actual use, it was found that existing plant protection drones are unable to stir the pesticide mixture before spraying pesticides on crops, which causes the pesticides to easily precipitate and mix unevenly, thereby affecting the effect of pesticide application on crops. Therefore, we proposed a spraying device for an unmanned plant protection drone to solve the above problems. Utility Model Content

[0005] The purpose of this application is to solve the shortcomings of the prior art: the inability to stir the pesticide mixture, which leads to easy precipitation and uneven mixing of the pesticide, thereby affecting the effect of pesticide application on crops, and to propose a spraying device for an unmanned plant protection machine.

[0006] In order to achieve the above objectives, this application adopts the following technical solutions:

[0007] A spraying device for an unmanned plant protection machine comprises a plant protection UAV main body, a liquid storage tank and two side boxes fixedly installed at the bottom of the plant protection UAV main body, the two sides of the plant protection UAV main body are respectively fixedly connected to the corresponding side boxes, a motor is fixedly installed on the right inner wall of one side box, and a stirring mechanism is provided between the motor and the liquid storage tank; a bottom box is fixedly installed at the bottom of the liquid storage tank, the two sides of the bottom box are respectively fixedly connected to the corresponding side boxes, a reciprocating mechanism is provided between the bottom box and the other side box, a spraying mechanism is provided between the bottom box and the liquid storage tank, and a seat hole is opened at the bottom of the bottom box.

[0008] Preferably, the stirring mechanism includes a stirring shaft and a stirring rod. The stirring shaft is fixedly mounted on the motor output shaft. The left end of the stirring shaft is rotatably connected to the left inner wall of the side box. The stirring rod is fixedly mounted on the stirring shaft, and the stirring rod is located in the liquid storage tank.

[0009] Preferably, the reciprocating mechanism comprises a reciprocating screw rod and a screw rod seat, the same reciprocating screw rod is rotatably installed on the right inner wall of the bottom box and the left inner wall of the other side box, the screw rod seat is threadedly sleeved on the reciprocating screw rod, the rear side of the screw rod seat is slidably connected with the seat hole, and the transmission mechanism is arranged between the reciprocating screw rod and the stirring shaft.

[0010] Preferably, the transmission mechanism comprises two transmission wheels and a transmission belt, the transmission wheels are fixedly sleeved on the reciprocating screw rod and the stirring shaft, the transmission wheels are located in one of the side boxes, and the same transmission belt is sleeved on the two transmission wheels.

[0011] Preferably, the spraying mechanism comprises a spraying seat, a booster pump and a spraying hose, the spraying seat is fixedly installed at the bottom of the screw rod seat, the booster pump is arranged on the inner wall at the bottom of the liquid storage tank, the same spraying hose is arranged between the booster pump and the spraying seat, and the spraying hose is fixedly connected with the front side of the screw rod seat.

[0012] Preferably, the same fixing rod is fixedly installed on the inner walls at both sides of the bottom box, the fixing rod is located below the reciprocating screw rod, and the screw rod seat is slidably sleeved on the fixing rod.

[0013] Preferably, a plurality of spraying heads are arranged at the bottom of the spraying seat.

[0014] Preferably, a plurality of supporting legs are arranged at the bottom of the plant protection unmanned aerial vehicle body, the supporting legs are located outside the side boxes, and buffer pads are arranged at the bottom of the supporting legs.

[0015] Preferably, a plurality of propellers are arranged at the top of the plant protection unmanned aerial vehicle body.

[0016] Preferably, a liquid injection port is arranged on the front side of the liquid storage tank, and the liquid injection port is located above the stirring shaft.

[0017] The application has the following beneficial effects:

[0018] 1. Through the cooperation of the motor, the stirring shaft and the stirring rod, the motor can drive the stirring rod to rotate, the stirring rod can stir the mixed liquid of the pesticide in the liquid storage tank, the various components in the liquid can be uniformly mixed, precipitation or stratification can be prevented, the consistency of the sprayed liquid components can be ensured, and better plant protection effect can be achieved.

[0019] 2. Through the cooperation of the two transmission wheels, the transmission belt, the reciprocating screw rod, the screw rod seat and the spraying seat, the stirring shaft can drive the spraying seat and the spraying head to reciprocate left and right, the spraying head can reciprocally spray within a certain range, the coverage area of the spraying can be expanded, and the efficiency and uniformity of the plant protection operation can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1A perspective view of a spraying device of an unmanned plant protection machine according to the present application is shown in the figure.

[0021] Figure 2 A front view of a spraying device of an unmanned plant protection machine according to the present application is shown in the figure.

[0022] Figure 3 A structure diagram of part A of a spraying device of an unmanned plant protection machine according to the present application is shown in the figure.

[0023] Figure 4 A perspective view of a transmission mechanism of a spraying device of an unmanned plant protection machine according to the present application is shown in the figure.

[0024] In the figure: 1, plant protection unmanned aerial vehicle main body; 2, liquid storage tank; 3, side tank; 4, bottom tank; 5, motor; 6, stirring shaft; 7, stirring rod; 8, reciprocating screw rod; 9, screw rod seat; 10, spraying seat; 11, booster pump; 12, spraying hose; 13, spraying head; 14, fixed rod; 15, seat hole; 16, transmission wheel; 17, transmission belt; 18, support leg; 19, buffer pad; 20, propeller. DETAILED DESCRIPTION

[0025] The technical solutions of the present application will be described in detail below with specific embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] REFERENCE Figures 1-4 A spraying device of an unmanned plant protection machine, comprising a plant protection unmanned aerial vehicle main body 1, a liquid storage tank 2 and two side tanks 3 are fixedly installed at the bottom of the plant protection unmanned aerial vehicle main body 1, the plant protection unmanned aerial vehicle main body 1 is fixedly connected with the corresponding side tank 3 on both sides, a motor 5 is fixedly installed on the inner wall of the right side of one side tank 3, and a stirring mechanism is arranged between the motor 5 and the liquid storage tank 2; a bottom tank 4 is fixedly installed at the bottom of the liquid storage tank 2, the bottom tank 4 is fixedly connected with the corresponding side tank 3 on both sides, a reciprocating mechanism is arranged between the bottom tank 4 and the other side tank 3, a spraying mechanism is arranged between the bottom tank 4 and the liquid storage tank 2, and a seat hole 15 is formed in the bottom of the bottom tank 4.

[0027] In the embodiment, the stirring mechanism includes a stirring shaft 6 and a stirring rod 7. The stirring shaft 6 is fixedly installed on the output shaft of the motor 5, and the left end of the stirring shaft 6 is rotatably connected to the left inner wall of the one side box 3. The stirring rod 7 is fixedly installed on the stirring shaft 6 and located in the liquid storage tank 2. The stirring mechanism is arranged to enable the motor 5 to drive the stirring rod 7 to rotate, so that the stirring rod 7 can stir the mixed liquid of the medicament, the components in the liquid can be uniformly mixed, precipitation or stratification can be prevented, the consistency of the sprayed liquid components can be ensured, and better plant protection effects can be achieved.

[0028] In the embodiment, the reciprocating mechanism includes a reciprocating screw rod 8 and a screw rod seat 9. The same reciprocating screw rod 8 is rotatably installed on the right inner wall of the bottom box 4 and the left inner wall of the other side box 3. The screw rod seat 9 is threadedly sleeved on the reciprocating screw rod 8. The rear side of the screw rod seat 9 is slidably connected to the seat hole 15. The transmission mechanism is arranged between the reciprocating screw rod 8 and the stirring shaft 6. The reciprocating mechanism is arranged to enable the reciprocating screw rod 8 to drive the screw rod seat 9 to reciprocate left and right, so that the spraying seat 10 can be driven to reciprocate left and right.

[0029] In the embodiment, the transmission mechanism includes two transmission wheels 16 and a transmission belt 17. The transmission wheels 16 are fixedly sleeved on the reciprocating screw rod 8 and the stirring shaft 6. The transmission wheels 16 are located in the one side box 3. The same transmission belt 17 is sleeved on the two transmission wheels 16. The transmission mechanism is arranged to enable the stirring shaft 6 to drive the reciprocating screw rod 8 to rotate at the same time.

[0030] In the embodiment, the spraying mechanism includes a spraying seat 10, a booster pump 11, and a spraying hose 12. The spraying seat 10 is fixedly installed at the bottom of the screw rod seat 9. The booster pump 11 is arranged on the inner wall at the bottom of the liquid storage tank 2. The same spraying hose 12 is arranged between the booster pump 11 and the spraying seat 10. The spraying hose 12 is fixedly connected to the front side of the screw rod seat 9. The spraying mechanism is arranged to enable the booster pump 11 to pressurize the liquid in the liquid storage tank 2, so that the liquid can be delivered to the spraying seat 10 through the spraying hose 12.

[0031] In the embodiment, the same fixed rod 14 is fixedly installed on the inner walls of the two sides of the bottom box 4. The fixed rod 14 is located below the reciprocating screw rod 8. The screw rod seat 9 is slidably sleeved on the fixed rod 14. The fixed rod 14 enables the screw rod seat 9 to move more stably left and right.

[0032] In the embodiment, a plurality of spraying heads 13 are arranged at the bottom of the spraying seat 10. The spraying heads 13 are arranged to enable the spraying seat 10 to uniformly spray the crops through the spraying heads 13.

[0033] In the embodiment, the plant protection unmanned aerial vehicle body 1 is provided with a plurality of supporting legs 18 at the bottom, the supporting legs 18 are located outside the side box 3, and the bottom of the supporting leg 18 is provided with a buffer pad 19. By being provided with the supporting leg 18 and the buffer pad 19, the impact force of the plant protection unmanned aerial vehicle body 1 during landing can be reduced through the buffer pad 19, and the purpose of protecting the plant protection unmanned aerial vehicle body 1 during landing can be achieved.

[0034] In the embodiment, the plant protection unmanned aerial vehicle body 1 is provided with a plurality of propellers 20 at the top, and the propellers 20 can provide lift and flight power for the plant protection unmanned aerial vehicle body 1, so that the plant protection unmanned aerial vehicle body 1 can fly in the air and perform plant protection work.

[0035] In the embodiment, the liquid storage tank 2 is provided with a liquid injection port at the front, and the liquid injection port is located above the stirring shaft 6. By being provided with the liquid injection port, the liquid injection port can be used to inject the pesticide into the liquid storage tank 2.

[0036] In the application, when in use, the pesticide is first injected into the liquid storage tank 2 through the liquid injection port. When the motor 5 is started during work, the output shaft drives the stirring shaft 6 to rotate. The stirring rod 7 on the stirring shaft 6 rotates in the liquid storage tank 2 along with the stirring shaft 6, which can stir the pesticide mixture in the liquid storage tank 2, can mix the components in the liquid uniformly, can prevent sedimentation or stratification, can ensure that the sprayed liquid components are consistent, and can achieve better plant protection effect. When the stirring shaft 6 rotates, the transmission wheels 16 are fixedly sleeved on the stirring shaft 6 and the reciprocating screw rod 8, and the two transmission wheels 16 are located in the same side box 3 and are transmissionally connected through the transmission belt 17. Therefore, the rotation of the stirring shaft 6 drives the reciprocating screw rod 8 to rotate through the transmission wheels 16 and the transmission belt 17, drives the screw rod seat 9 to move left and right reciprocally, drives the spraying seat 10 and the spraying head 13 to move left and right reciprocally, and achieves reciprocating spraying of the spraying head 13 within a certain range, which can expand the coverage area of spraying and improve the efficiency and uniformity of plant protection work.

Claims

1. A spraying device of an unmanned plant protection machine, characterized in that, Including plant protection unmanned plane main body (1), the bottom of plant protection unmanned plane main body (1) is fixedly installed with liquid storage tank (2) and two edge tanks (3), the both sides of plant protection unmanned plane main body (1) are respectively fixedly connected with corresponding edge tank (3), one right side inner wall of edge tank (3) is fixedly installed with motor (5), and stirring mechanism is arranged between motor (5) and liquid storage tank (2); The bottom of the liquid storage tank (2) is fixedly installed with a bottom tank (4), the both sides of the bottom tank (4) are respectively fixedly connected with the corresponding edge tank (3), a reciprocating mechanism is arranged between the bottom tank (4) and the other side edge tank (3), a spraying mechanism is arranged between the bottom tank (4) and the liquid storage tank (2), and a seat hole (15) is formed in the bottom of the bottom tank (4). The stirring mechanism comprises a stirring shaft (6) and a stirring rod (7), the stirring shaft (6) is fixedly installed on the output shaft of the motor (5), the left end of the stirring shaft (6) is rotatably connected with the left side inner wall of one edge tank (3), and the stirring rod (7) is fixedly installed on the stirring shaft (6).

2. The spraying device of the unmanned plant protection machine according to claim 1, characterized in that, The reciprocating mechanism comprises a reciprocating screw rod (8) and a screw rod seat (9), the same reciprocating screw rod (8) is rotatably installed on the right side inner wall of the bottom tank (4) and the left side inner wall of the other edge tank (3), the screw rod seat (9) is threadedly sleeved on the reciprocating screw rod (8), the rear side of the screw rod seat (9) is slidably connected with the seat hole (15), and a transmission mechanism is arranged between the reciprocating screw rod (8) and the stirring shaft (6).

3. The spraying device of the unmanned plant protection machine according to claim 2, characterized in that, The transmission mechanism comprises two transmission wheels (16) and a transmission belt (17), the transmission wheels (16) are fixedly sleeved on the reciprocating screw rod (8) and the stirring shaft (6), and the transmission wheels (16) are located in one edge tank (3).

4. The spraying device of the unmanned plant protection machine according to claim 2, characterized in that, The spraying mechanism comprises a spraying seat (10), a booster pump (11) and a spraying hose (12), the spraying seat (10) is fixedly installed on the bottom of the screw rod seat (9), the booster pump (11) is arranged on the bottom inner wall of the liquid storage tank (2), the same spraying hose (12) is arranged between the booster pump (11) and the spraying seat (10), and the spraying hose (12) is fixedly connected with the front side of the screw rod seat (9).

5. The spraying device of the unmanned plant protection machine according to claim 2, characterized in that, The same fixed rod (14) is fixedly installed on the both side inner walls of the bottom tank (4), the fixed rod (14) is located below the reciprocating screw rod (8), and the screw rod seat (9) is slidably sleeved on the fixed rod (14).

6. The spraying device of the unmanned plant protection machine according to claim 4, characterized in that, A plurality of spraying heads (13) are arranged on the bottom of the spraying seat (10).

7. The spraying device of the unmanned plant protection machine according to claim 1, characterized in that, A plurality of supporting legs (18) are arranged on the bottom of the plant protection unmanned plane main body (1), the supporting legs (18) are located outside the edge tank (3), and a buffer pad (19) is arranged on the bottom of the supporting leg (18). 8.The spraying device of the unmanned plant protection machine according to claim 1, wherein, A plurality of propellers (20) are arranged on the top of the plant protection unmanned plane main body (1). 9.The spraying device of the unmanned plant protection machine according to claim 1, wherein, A liquid injection port is arranged on the front side of the liquid storage tank (2), and the liquid injection port is located above the stirring shaft (6). A plurality of spraying heads (13) are arranged on the bottom of the spraying seat (10).

Citation Information

Patent Citations

  • Unmanned plant protection machine sprinkler that can dodge

    CN205409295U