External pesticide spraying device for helicopter

Abstract

The utility model relates to the technical field of pesticide spraying, in particular to a helicopter externally-hung pesticide spraying device which comprises a pesticide box, a feeding port and a discharging port are formed in the side wall of the pesticide box, the feeding port is in threaded connection with a sealing cover, and the discharging port is provided with a control valve. The water pump is connected to the pesticide box, a water inlet pipe is arranged in the pesticide box, and one end of the water inlet pipe penetrates through the through hole in the pesticide box to be connected with the water inlet end of the water pump; the supporting frames are evenly distributed and connected to the upper portion of the pesticide box at equal intervals, and fixing rings are connected to the supporting frames; and the adjusting assembly is arranged on the side away from the advancing direction of the pesticide box, and the pesticide spraying range can be enlarged when the adjusting assembly is in a use state. According to the utility model, the adjusting assembly can freely adjust the spraying range of the pesticide liquid, the spraying range of the spraying assembly can be further increased through the extension assembly in the adjusting assembly, and the adjusting assembly is adjusted in the horizontal direction, is slightly influenced by a helicopter undercarriage and can adapt to more use scenes.

Description

Technical Field

[0001] The utility model relates to the technical field of pesticide spraying, in particular to a helicopter external pesticide spraying device. Background Art

[0002] With the development of society and the advancement of science and technology, the spraying method using aviation equipment such as helicopters, light aircraft and drones equipped with pesticide spraying equipment is becoming more and more popular in large farms and agriculture and forestry. It has high pesticide spraying efficiency and wide coverage area, which solves the limitations of large-scale production and is widely used in forest protection and prevention and control of agricultural, forestry and animal husbandry pests and diseases.

[0003] After searching, Chinese patent publication number CN219313018U discloses a helicopter external pesticide spraying device, including a helicopter body, the lower end of the helicopter body is connected to an inverted "U"-shaped spraying frame through an external assembly, and a spraying mechanism for spraying pesticides is installed on the spraying frame; the spraying mechanism includes an electric push rod, which is installed at the inner top center of the spraying frame, and the output end of the electric push rod is symmetrically staggered through a transmission assembly. Two transmission rings are connected to the two support columns symmetrically, and the two transmission rings are symmetrically and movably sleeved on the two support columns. The utility model can adjust the width of the spraying mechanism according to the use requirements, which is not only conducive to the take-off and landing of the helicopter body and the storage of the spraying mechanism, but also reduces the flight mileage of the helicopter body and reduces energy consumption.

[0004] However, in the above technical solution, the spray pipe is deployed or retracted only by moving the output end of the electric push rod to drive the transmission rod on the transmission plate to move synchronously in the opposite or opposite directions, but the movement range of the spray pipe is limited by the electric push rod and the transmission rod. A sufficiently high height is required to deploy the electric push rod to increase the movement range of the spray pipe. It cannot be applied to some helicopters with low landing gear heights, and the usage scenarios are subject to certain restrictions. At the same time, the powdered pesticide enters the liquid storage tank, making it difficult to stir, and precipitation and uneven mixing are likely to occur, affecting the efficacy of the pesticide. Utility Model Content

[0005] The utility model aims to solve the problems existing in the background technology and proposes a helicopter external pesticide spraying device.

[0006] The technical solution of the utility model is as follows: a helicopter external pesticide spraying device comprises a pesticide box, side walls of which are respectively provided with a feed port and a discharge port, the feed port is threadedly connected with a sealing cover, and the discharge port is provided with a control valve; a water pump, which is connected to the pesticide box, a water inlet pipe is provided in the pesticide box, one end of the water inlet pipe passes through a through hole in the pesticide box and is connected to the water inlet end of the water pump; a support frame, which is evenly connected above the pesticide box at equal intervals, and a fixing ring is connected to the support frame; an adjusting component, which is arranged on a side away from the forward direction of the pesticide box, and the pesticide spraying range can be increased when the adjusting component is in use; a stirring component, which is arranged in the pesticide box, and the stirring component can drive the water in the pesticide box to rotate and mix when it is in use.

[0007] Preferably, the adjustment component includes a fixed plate, which is connected to the pesticide box, and dovetail grooves are provided at both upper and lower ends of the fixed plate, and a receiving cavity connecting the two dovetail grooves is provided between the dovetail grooves; a motor, which is connected to the fixed plate, and the output end of the motor is transmission-connected with an output shaft; a gear, which is arranged in the receiving cavity, and one end of the output shaft passes through the fixed plate and is connected to the gear; two movable plates are arranged in parallel, and the side of the movable plate close to the fixed plate is connected to a first dovetail block slidably connected to the dovetail groove, and the first dovetail block is connected to a first rack, and the first rack is meshingly transmission-connected with the gear; a spraying component, which is connected to the movable plate, and the spraying component can move synchronously with the movable plate in the same or opposite directions; an extension component, which is detachably connected to the movable plate, and the extension component can extend the moving range of the movable plate when it is in use.

[0008] Preferably, the spray assembly includes spray pipes, the number of which corresponds to the number of movable plates, the spray pipes are connected to the side of the movable plate away from the pesticide box, and the spray pipes are connected to nozzles equidistantly distributed in the direction of the central axis of the spray pipes; a connecting hose, one end of which passes through the movable plate and is connected to the spray pipe, and the other end of the connecting hose is connected to the water outlet of the water pump.

[0009] Preferably, the extension assembly includes extension plates, the number of which corresponds to the number of movable plates, and the extension plates are connected to the second dovetail block and the second rack on the side close to the fixed plate; a T-shaped block is connected to the end of the extension plate close to the movable plate, and the T-shaped block is slidably connected to the T-slot opened on the extension plate.

[0010] Preferably, the stirring assembly includes a rotating shaft, one end of which is rotatably connected in the pesticide box, and the other end of the rotating shaft extends out of a through hole opened in the pesticide box; a driving blade, the circumference of which is distributed on the outer circumference of the rotating shaft; a stirring rod, which is arranged in the pesticide box, the circumference of the stirring rod is distributed on the outer circumference of the rotating shaft, and the stirring rod has multiple layers equidistantly distributed along the central axis of the rotating shaft.

[0011] Preferably, a spiral blade is connected to one end of the rotating shaft near the top of the pesticide box.

[0012] Preferably, an observation window is provided on the side wall of any side of the pesticide box.

[0013] Compared with the prior art, the above technical solution of the utility model has the following beneficial technical effects:

[0014] In the utility model, when the helicopter is flying and moving, the wind force generated by the movement will blow the stirring component to put the stirring component into use state, and the stirring component rotates to stir the pesticide in the pesticide box to prevent uneven mixing from affecting the efficacy of the medicine. The adjustment component can freely adjust the spraying range of the liquid medicine, and the extension component in the adjustment component can further increase the spraying range of the spraying component. The adjustment component is adjusted in the horizontal direction, is less affected by the helicopter landing gear, and can adapt to more usage scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 for Figure 1 A schematic cross-sectional structure diagram of ;

[0017] Figure 3 It is a schematic diagram of the cross-sectional structure of the fixing plate;

[0018] Figure 4 for Figure 3 A magnified view of the structure at A;

[0019] Figure 5 This is a schematic diagram of the extension plate structure.

[0020] Figure numerals: 1. pesticide box; 2. feed port; 3. discharge port; 4. sealing cover; 5. control valve; 6. water pump; 7. water inlet pipe; 8. support frame; 9. fixing ring; 10. fixing plate; 11. dovetail groove; 12. accommodating cavity; 13. motor; 14. output shaft; 15. gear; 16. moving plate; 17. first dovetail block; 18. first rack; 19. spray pipe; 20. nozzle; 21. connecting hose; 22. extension plate; 23. second dovetail block; 24. second rack; 25. T-block; 26. T-slot; 27. rotating shaft; 28. driving blade; 29. ​​stirring rod; 30. spiral blade; 31. observation window. DETAILED DESCRIPTION

[0021] Embodiment 1

[0022] like Figure 1-Figure 5As shown, the utility model proposes a helicopter external pesticide spraying device, including a pesticide box 1, a feed port 2, a discharge port 3, a sealing cover 4, a control valve 5, a water pump 6, a water inlet pipe 7, a support frame 8, a fixing ring 9, an adjusting component and a stirring component. The top and side walls of the pesticide box 1 are respectively used to open the feed port 2 and the discharge port 3, the sealing cover 4 is threadedly connected to the feed port 2, and the discharge port 3 is used to connect the control valve 5; wherein, both medicine and water can enter the pesticide box 1 from the feed port 2, and the control valve 5 controls the on and off of the discharge port 3 to discharge the remaining medicine liquid, so as to facilitate the cleaning of the pesticide box 1; the pesticide box 1 is used to be provided with a stirring component; wherein, when the helicopter is flying and moving, the wind force generated by the movement will blow the stirring component to put the stirring component into use state, and the stirring component rotates to move the pesticide in the pesticide box 1 The pesticide is stirred to prevent uneven mixing from affecting the efficacy; four equidistant and evenly distributed support frames 8 are connected to the top of the pesticide box 1, and fixed rings 9 are connected to the support frames 8; wherein the support frame 8 is connected to the landing gear of the helicopter through the fixed ring 9; the water pump 6 is connected to the side wall of the pesticide box 1 away from the forward direction, and the water inlet end of the water pump 6 passes through the pesticide box 1 and contacts the water body; wherein, when the helicopter drives one side of the pesticide box 1 to move, the liquid medicine extracted by the water pump 6 at the rear of the pesticide box 1 is less affected by the wind during spraying, thereby preventing the pesticide box 1 from being stained with too much liquid medicine when moving; the adjusting component is arranged below the water pump 6; wherein, the adjusting component can freely adjust the range of liquid medicine spraying when entering the use state, and because the adjusting component is adjusted in the horizontal direction, it is less affected by the helicopter landing gear.

[0023] In an optional embodiment, an observation window 31 is provided on any side wall of the pesticide box 1 ; wherein the observation window 31 facilitates observation of the remaining amount of pesticide in the pesticide box 1 and the mixing and stirring of the pesticide.

[0024] Embodiment 2

[0025] like Figure 3-Figure 5As shown, a helicopter external pesticide spraying device proposed by the utility model, compared with the first embodiment, this embodiment records the detailed structure of the adjustment component, the adjustment component includes a fixed plate 10, a accommodating cavity 12, a motor 13, an output shaft 14, a gear 15, a movable plate 16, a first dovetail block 17, a first rack 18, a spraying component and an extension component, the fixed plate 10 is connected to the pesticide box 1, the upper and lower ends of the fixed plate 10 are provided with dovetail grooves 11, and a accommodating cavity 12 connecting the two is provided between the dovetail grooves 11, the gear 15 is arranged in the accommodating cavity 12, and the upper and lower sides of the gear 15 are meshed and transmission-connected with the first rack 18, the upper and lower ends of the fixed plate 10 are used to set the movable plate 16, and the movable plate 16 is close to the fixed plate 10. The side is used A first dovetail block 17 is connected, and the first dovetail block 17 is used to connect the first rack 18. The motor 13 is connected to the fixed plate 10, and one end of the output shaft 14 is connected to the gear 15, and the other end of the output shaft 14 passes through the accommodating cavity 12 and is connected to the output end of the motor 13; wherein, when adjusting the spraying range of the spray assembly, the motor 13 will drive the output shaft 14 to rotate after starting, and the gear 15 on the output shaft 14 rotates and engages with the first rack 18 on the movable plate 16, thereby driving the movable plate 16 to slide synchronously in opposite directions along the dovetail groove 11 opened on the fixed plate 10 through the first dovetail block 17, and the two movable plates 16 move away from the fixed plate 10 in opposite directions synchronously, thereby driving the spray assemblies to move away from each other, thereby increasing the spraying range of the spray assembly.

[0026] The spray assembly includes a spray pipe 19, a nozzle 20 and a connecting hose 21. The number of the spray pipes 19 and the connecting hose 21 corresponds to the movable plate 16. The spray pipe 19 is connected to the movable plate 16. The nozzles 20 are evenly connected to the spray pipe 19 at equal intervals along the length direction of the movable plate 16. One end of the connecting hose 21 passes through the movable plate 16 and is connected to the spray pipe 19, and the other end is connected to the water outlet of the water pump 6. The water outlet pipe is divided into two streams of water and injected into the connecting hose 21 through a three-way joint; wherein, the mixed pesticide in the pesticide box 1 is extracted into the water inlet pipe 7 through the water pump 6, and then discharged into the two connecting hoses 21 through the water outlet of the water pump 6, and the liquid medicine is evenly sprayed through a plurality of evenly distributed nozzles 20 connected to the connecting hose 21.

[0027] The extension assembly includes an extension plate 22, a second dovetail block 23, a second rack 24 and a T-shaped block 25. The number of the extension plates 22 corresponds to the number of the movable plates 16. The extension plate 22 is close to the fixed plate 10 and is used to connect the second dovetail block 23 and the second rack 24. The second dovetail block 23 is slidably connected to the dovetail groove 11, and the second rack 24 is meshed and transmission-connected with the gear 15. The extension plate 22 can be slidably connected to the movable plate 16 through the cooperation of the second dovetail block 23 and the dovetail groove 11, and the second rack 24 can be meshed and transmission-connected with the gear 15. The meshing with the gear 15 causes the horizontal movement along the length direction of the movable plate 16; any end of the extension plate 22 is used to connect the T-block 25, and the T-block 25 is slidably connected to the T-slot 26 opened on the movable plate 16; wherein, the extension plate 22 is slidably connected to the T-slot 26 on the movable plate 16 through the T-block 25 at one end thereof, and at the same time, the T-slot 26 is not through, so that when the movable plate 16 and the extension plate 22 are connected, their movement can be limited by the weight of the movable plate 16 itself, so that the two maintain a connection relationship.

[0028] Embodiment 3

[0029] like Figure 2 As shown, the utility model proposes a helicopter external pesticide spraying device. Compared with the second embodiment, this embodiment records the detailed structure of the stirring component. The stirring component includes a rotating shaft 27, a driving blade 28 and a stirring rod 29. One end of the rotating shaft 27 is rotatably connected to the inner wall of the pesticide box 1 through a bearing, and the other end of the rotating shaft 27 passes through the through hole on the pesticide box 1 and is connected to the circumferentially distributed driving blade 28. The part of the rotating shaft 27 located in the pesticide box 1 is connected with the upper and lower multiple layers of circumferentially distributed stirring rods 29; wherein, when the helicopter drives the pesticide box 1 and the stirring component to move during flight, the wind force generated by the flight blows the driving blade 28 to drive the rotating shaft 27 and the stirring rod 29 to rotate synchronously, and the pesticide and water in the pesticide box 1 are mixed by the rotation of the stirring rod 29 to avoid uneven mixing of the drugs and inability to fully release the drug efficacy.

[0030] In an optional embodiment, a spiral blade 30 is connected to one end of the rotating shaft 27 near the top of the pesticide box 1; when the rotating shaft 27 is driven by the driving blade 28 to rotate, the rotating shaft 27 drives the spiral blade 30 to rotate, and the spiral blade 30 transports the liquid medicine or powder at the top of the pesticide box 1 upward, so that the water body and the powder are fully integrated to avoid insufficient mixing affecting the efficacy of the liquid medicine.

[0031] In summary, when the utility model is used, the support frame 8 is connected to the landing gear of the helicopter through the fixing ring 9, and both the medicine and water can enter the pesticide box 1 from the feed port 2, and then the helicopter takes off and moves to the vicinity of the destination. During the flight of the helicopter, the wind generated by the flight blows and drives the blades 28 to drive the rotating shaft 27 and the stirring rod 29 to rotate synchronously. The pesticide and water in the pesticide box 1 are mixed by the rotation of the stirring rod 29 to avoid uneven mixing of the medicines and inability to fully release the medicine efficacy; then the adjustment component is started to adjust the required spraying range, and after the motor 13 is started, it will drive the output shaft 14 to rotate, and the gear 15 on the output shaft 14 rotates to engage with the first rack 18 on the movable plate 16, thereby driving the movable plate 16 to slide synchronously in opposite directions along the dovetail groove 11 opened on the fixed plate 10 through the first dovetail block 17, and the two movable plates 16 move away from the fixed plate 10 in opposite directions synchronously, thereby driving the spraying component. The two ends of the movable plate 16 are moved away from each other to increase the spraying range of the spraying assembly. When it is necessary to further increase the spraying range, the extension plate 22 is slidably connected to the movable plate 16 through the cooperation of the second dovetail block 23 and the dovetail groove 11, and the movable plate 16 is horizontally moved along the length direction of the movable plate 16 through the meshing of the second rack 24 and the gear 15. The extension plate 22 is slidably connected to the T-shaped groove 26 on the movable plate 16 through the T-shaped block 25 at one end thereof. At the same time, the T-shaped groove 26 is not through, so that when the movable plate 16 and the extension plate 22 are connected, the movement can be limited by the gravity of the movable plate 16 itself, so that the two maintain a connected relationship so that the movable plate 16 can be moved to a farther distance, and the spraying range is further expanded. The mixed pesticide in the pesticide box 1 is extracted into the water inlet pipe 7 through the water pump 6, and then discharged into the two connecting hoses 21 through the water outlet end of the water pump 6, and the liquid medicine is evenly sprayed through a plurality of evenly distributed nozzles 20 connected to the connecting hose 21.

[0032] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A helicopter external pesticide spraying device, characterized in that: include A pesticide box (1) has a feed inlet (2) and a discharge outlet (3) respectively formed on its side wall, a sealing cover (4) being threadedly connected to the feed inlet (2), and a control valve (5) being provided at the discharge outlet (3); A water pump (6) is connected to the pesticide box (1). A water inlet pipe (7) is provided in the pesticide box (1). One end of the water inlet pipe (7) passes through a through hole on the pesticide box (1) and is connected to a water inlet end of the water pump (6); A support frame (8) is evenly connected to the top of the pesticide box (1) at equal intervals, and a fixing ring (9) is connected to the support frame (8); An adjustment component is arranged on a side away from the forward direction of the pesticide box (1), and can increase the pesticide spraying range when the adjustment component is in use; The stirring component is arranged in the pesticide box (1); when the stirring component is in use, it drives the water in the pesticide box (1) to rotate and mix.

2. The helicopter external pesticide spraying device according to claim 1, characterized in that: Adjustment components include A fixing plate (10) connected to the pesticide box (1), wherein the fixing plate (10) is provided with dovetail grooves (11) at both upper and lower ends, and a receiving cavity (12) connecting the two dovetail grooves (11) is provided between the dovetail grooves (11); An electric motor (13) is connected to the fixed plate (10), and an output end of the electric motor (13) is drivingly connected to an output shaft (14); A gear (15) is arranged in the accommodating cavity (12); one end of the output shaft (14) passes through the fixing plate (10) and is connected to the gear (15); Two movable plates (16) are arranged in parallel, and one side of the movable plates (16) close to the fixed plate (10) is connected to a first dovetail block (17) slidably connected to the dovetail groove (11), and the first dovetail block (17) is connected to a first rack (18), and the first rack (18) is meshed and transmission-connected with the gear (15); A spray assembly connected to the moving plate (16), the spray assembly being able to move synchronously with the moving plate (16) in the same direction or in the opposite direction; An extension component is detachably connected to the movable plate (16); when the extension component is in use, the movable range of the movable plate (16) can be extended.

3. The helicopter external pesticide spraying device according to claim 2, characterized in that: Spray kit includes Spraying pipes (19), the number of which corresponds to the number of the movable plates (16), the spraying pipes (19) being connected to a side of the movable plate (16) away from the pesticide box (1), and the spraying pipes (19) being connected to spray heads (20) evenly distributed at equal distances in the direction of the central axis of the spraying pipe (19); A connecting hose (21) has one end that passes through the movable plate (16) and is connected to the spray pipe (19), and the other end of the connecting hose (21) is connected to the water outlet of the water pump (6).

4. The helicopter external pesticide spraying device according to claim 2, characterized in that: Extension kit includes Extension plates (22), the number of which corresponds to the number of movable plates (16), and the extension plates (22) are connected to a second dovetail block (23) and a second rack (24) on one side close to the fixed plate (10); The T-shaped block (25) is connected to one end of the extension plate (22) close to the movable plate (16), and the T-shaped block (25) is slidably connected to a T-shaped groove (26) provided on the extension plate (22).

5. The helicopter external pesticide spraying device according to claim 1, characterized in that: The stirring assembly includes A rotating shaft (27), one end of which is rotatably connected to the pesticide box (1), and the other end of which extends out of a through hole provided on the pesticide box (1); Driving blades (28) are circumferentially distributed on the outer peripheral surface of the rotating shaft (27); The stirring rod (29) is arranged in the pesticide box (1). The stirring rod (29) is circumferentially distributed on the outer peripheral surface of the rotating shaft (27). The stirring rod (29) has multiple layers evenly distributed at equal intervals along the central axis direction of the rotating shaft (27).

6. The helicopter external pesticide spraying device according to claim 5, characterized in that: One end of the rotating shaft (27) close to the top of the pesticide box (1) is connected with a spiral blade (30).

7. The helicopter external pesticide spraying device according to claim 1, characterized in that: An observation window (31) is provided on a side wall on any side of the pesticide box (1).

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