Medicament spraying device for helicopter

Abstract

The pesticide spraying device comprises a connecting frame, a box body and a stirring mechanism, the box body is fixedly connected with the connecting frame, the stirring mechanism comprises a supporting plate, a driving part, a rotating shaft and a stirring part, the supporting plate is fixedly installed on the box body, the driving part is installed on the supporting plate, and the rotating shaft is installed on the rotating shaft. The rotating shaft is fixedly connected with an output shaft of the driving part, the stirring part is located in the box body and fixedly connected with the rotating shaft, the lower end of the box body is fixedly connected with a round pipe, the lower end of the round pipe is fixedly connected with a communicating box, the two ends of the round pipe communicate with the box body and the communicating box correspondingly, and a pesticide spraying pipe is arranged at the lower end of the communicating box; a communicating pipe is fixedly connected to the side wall of the communicating box, the communicating pipe is communicated with the bottom of the box body and the side wall of the communicating box, and the stirring piece is an impeller located in the circular pipe. The pesticide box has the beneficial effect that the concentration of the pesticide in the pesticide box is uniformly distributed.

Description

Technical Field

[0001] This utility model relates to the technical field of medicine boxes, specifically to a helicopter medicine spraying device. Background Technology

[0002] Helicopter spraying is a highly efficient and precise aerial agricultural and forestry plant protection technology. Compared to traditional manual or ground machinery, it significantly reduces manpower and time investment. The downdraft generated by the low-altitude flight of helicopters enhances the penetration of pesticides, improving control effectiveness. Helicopter spraying is particularly effective in improving the efficiency of plant protection operations when spraying pesticides on specific areas of forest in mountainous regions.

[0003] Chinese utility model patent CN215043724U discloses a medicine box suspension mechanism for a single-rotor unmanned helicopter, relating to the field of unmanned helicopter technology. It includes a helicopter body, a suspension mechanism, and a medicine box body. The suspension mechanism includes two support rods arranged in parallel. A second protective rod is welded to each of the two parallel support rods. A connecting rod is welded to the top of each support rod, and the connecting rod is inserted into a mounting base. The connecting rod is rotatably connected to the mounting base. A threaded rod is welded to the top of the mounting base. By configuring the support rods, first protective rod, second protective rod, connecting rod, mounting base, threaded rod, and mounting hole, the threaded rod can be screwed into the mounting hole when the medicine box body needs to be suspended, and unscrewed when the medicine box body is not needed, facilitating the disassembly and storage of the medicine box body suspension mechanism.

[0004] During transportation, pesticides in the pesticide tank will settle to the bottom of the tank, causing uneven pesticide concentration. Summary of the Invention

[0005] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a helicopter medicine spraying device, which includes a connecting frame, a box and a stirring mechanism. The helicopter medicine spraying device has the advantage of uniform medicine concentration in the medicine box.

[0006] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows:

[0007] A helicopter spraying device includes a connecting frame, a housing, and a stirring mechanism. The housing is fixedly connected to the connecting frame. The stirring mechanism includes a support plate, a drive component, a rotating shaft, and a stirring component. The support plate is fixedly mounted on the housing, the drive component is mounted on the support plate, and the rotating shaft is fixedly connected to the output shaft of the drive component. The stirring component is located inside the housing and is fixedly connected to the rotating shaft. A circular tube is fixedly connected to the lower end of the housing, and a connecting box is fixedly connected to the lower end of the circular tube. Both ends of the circular tube are connected to the housing and the connecting box, respectively. A spray pipe is provided at the lower end of the connecting box, and a connecting pipe is fixedly connected to the side wall of the connecting box. The connecting pipe is connected to the bottom of the housing and the side wall of the connecting box, respectively. The stirring component is an impeller located inside the circular tube.

[0008] Preferably, the connecting pipe is rotatably connected to a one-way partition, which is located between the connecting pipe and the connecting box. The connecting pipe is provided with a limiting protrusion that engages with the side of the one-way partition away from the connecting box. The connecting pipe is provided with a through groove that communicates with the connecting box. The limiting protrusion is located at the through groove. When the one-way partition engages with the limiting protrusion, the one-way partition blocks the through groove.

[0009] Preferably, a connecting plate is provided between the box body and the connecting pipe, and the two ends of the connecting plate are fixedly connected to the box body and the lower end of the connecting pipe, respectively.

[0010] Preferably, the spray pipe is equipped with a solenoid valve.

[0011] Preferably, the lower end of the spray pipe is provided with an atomizing nozzle.

[0012] Preferably, the housing is equipped with a battery bracket, the housing has a horizontally extending groove, and the side wall of the battery bracket has a first slider that cooperates with the groove.

[0013] Preferably, the housing is provided with a locking block, and the two ends of the battery bracket are respectively engaged with the housing and the locking block.

[0014] Preferably, the locking block has a second slider on its side wall that mates with the slide groove, the locking block has a screw that is threadedly connected to the housing, the screw is fixedly connected to a knob, the knob has anti-slip texture on its side wall, the locking block has a groove for accommodating the knob, the groove has an inclined surface on its side wall, and the upper end of the inclined surface is inclined away from the knob.

[0015] Preferably, the top of the housing is provided with a mounting groove, the drive unit and the battery bracket are both set in the mounting groove, the drive unit is fixedly connected with a corrugated air guide plate, the corrugated air guide plate has a corrugated cross-section, the corrugated air guide plate is located between the drive unit and the battery bracket, the middle part of the corrugated air guide plate is located in the mounting groove and both ends extend out of the mounting groove.

[0016] Preferably, the box body is provided with a medicine inlet, and the box body is threadedly connected with a cover that covers the medicine inlet.

[0017] Compared with the prior art, this utility model has achieved beneficial technical effects:

[0018] 1. As the impeller rotates in the forward direction, it pushes the water in the circular tube upward, creating a negative pressure in the connecting box. Then, the water in the box is drawn into the connecting box and the circular tube through the connecting pipe. The pressure difference pushes the one-way baffle to flip towards the side closer to the connecting box, so that the impeller can continuously push the water upward from the circular tube, improving the uniformity of the reagent mixing.

[0019] 2. When rapid spraying of the pesticide is required, the drive unit rotates the shaft and impeller in opposite directions. The impeller drives the liquid in the circular pipe to flow towards the connecting box and the spray pipe. The water flow pushes the one-way baffle to flip towards the side closer to the connecting pipe. When the one-way baffle flips and is stopped by the limiting protrusion, it blocks the through-slot, thus preventing water from flowing into the box through the connecting pipe. This creates positive pressure inside the connecting box, increasing the pressure in the connecting box and the spray pipe, thereby increasing the spraying speed and improving work efficiency. When slow spraying of the pesticide is required, the drive unit stops operating. The pressure inside the connecting box and the spray pipe is lower than when the impeller is rotating in the opposite direction. The pesticide can flow simultaneously through the circular pipe and the connecting pipe to the connecting box and the spray pipe, allowing for slower spraying. This achieves the function of controlling the pesticide spraying speed through the stirring component. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a helicopter spraying device according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the unidirectional partition plate when the shaft and impeller rotate forward in an embodiment of this utility model;

[0022] Figure 3 This is a schematic diagram of the unidirectional partition plate when the shaft and impeller reverse in an embodiment of this utility model;

[0023] Figure 4 This is a disassembly diagram of the locking block and screw in an embodiment of this utility model.

[0024] The technical features referred to by the various reference numerals in the accompanying drawings are as follows:

[0025] 11. Connecting frame; 12. Box body; 13. Inlet; 14. Cover; 15. Spray pipe; 16. Solenoid valve; 17. Atomizing nozzle; 21. Support plate; 22. Drive component; 23. Rotating shaft; 24. Stirring component; 25. Corrugated air guide plate; 31. Round pipe; 32. Connecting box; 33. Connecting pipe; 34. One-way partition; 35. Limiting protrusion; 36. Through groove; 37. Connecting plate; 41. Mounting groove; 42. Slide groove; 43. Battery bracket; 44. First slider; 51. Locking block; 52. Second slider; 53. Screw; 54. Knob; 55. Groove; 56. Inclined surface. Detailed Implementation

[0026] To make the objectives, technical solutions and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments. However, the scope of protection of this utility model is not limited to the specific embodiments described below.

[0027] refer to Figure 1-4 A helicopter spraying device includes a connecting frame 11, a housing 12 and a stirring mechanism, wherein the housing 12 is fixedly connected to the connecting frame 11.

[0028] The stirring mechanism includes a support plate 21, a drive component 22, a rotating shaft 23, and a stirring component 24. The support plate 21 is fixedly installed on the housing 12, and the drive component 22 is installed on the support plate 21. The drive component 22 is a geared motor. The rotating shaft 23 is fixedly connected to the output shaft of the drive component 22. The stirring component 24 is located inside the housing 12 and is fixedly connected to the rotating shaft 23. A circular tube 31 is fixedly connected to the lower end of the housing 12. A connecting box 32 is fixedly connected to the lower end of the circular tube 31. The two ends of the circular tube 31 are respectively connected to the housing 12 and the connecting box 32. A connecting pipe 33 is fixedly connected to the side wall of the connecting box 32. The connecting pipe 33 is respectively connected to the bottom of the housing 12 and the side wall of the connecting box 32. The stirring component 24 is an impeller located inside the circular tube 31.

[0029] A one-way partition 34 is rotatably connected to the connecting pipe 33. The one-way partition 34 is located between the connecting pipe 33 and the connecting box 32. The connecting pipe 33 has a limiting protrusion 35 that engages with the side of the one-way partition 34 away from the connecting box 32. The connecting pipe 33 has a through groove 36 that communicates with the connecting box 32. The limiting protrusion 35 is located at the through groove 36. When the one-way partition 34 engages with the limiting protrusion 35, the one-way partition 34 blocks the through groove 36. A connecting plate 37 is provided between the box 12 and the connecting pipe 33. The two ends of the connecting plate 37 are fixedly connected to the box 12 and the lower end of the connecting pipe 33, respectively.

[0030] The housing 12 is equipped with a battery bracket 43. The housing 12 has a horizontally extending groove 42. The side wall of the battery bracket 43 has a first slider 44 that mates with the groove 42. A battery is housed inside the battery bracket 43 and is electrically connected to the drive unit 22 to supply power to the drive unit 22. The housing 12 has a locking block 51. Both ends of the battery bracket 43 are respectively engaged with the housing 12 and the locking block 51. The side wall of the locking block 51 has a second slider 52 that mates with the groove 42. A screw 53 that is threadedly connected to the housing 12 passes through the locking block 51. A knob 54 is fixedly connected to the screw 53. The side wall of the knob 54 has anti-slip texture. The locking block 51 has a groove 55 to accommodate the knob 54. The side wall of the groove 55 has an inclined surface 56, and the upper end of the inclined surface 56 is inclined away from the knob 54. The top of the housing 12 is provided with a mounting groove 41. The drive component 22 and the battery bracket 43 are both located in the mounting groove 41. The drive component 22 is fixedly connected to a corrugated air guide plate 25. The corrugated air guide plate 25 has a corrugated cross section. The corrugated air guide plate 25 is located between the drive component 22 and the battery bracket 43. The middle part of the corrugated air guide plate 25 is located inside the mounting groove 41 and both ends extend out of the mounting groove 41.

[0031] The housing 12 is provided with a medicine inlet 13, and the housing 12 is threadedly connected with a cover 14 that covers the medicine inlet 13. The lower end of the connecting box 32 is provided with a spray pipe 15, the spray pipe 15 is provided with a solenoid valve 16, and the lower end of the spray pipe 15 is provided with an atomizing nozzle 17.

[0032] This embodiment has the following advantages:

[0033] The connecting bracket 11 is used to connect to the bottom of the helicopter, allowing the medicine tank to be installed below the helicopter. Water and pesticides are poured into the tank 12 through the inlet 13. The drive component 22 drives the rotating shaft 23 and impeller to rotate forward. As the impeller rotates forward, it pushes the water in the circular tube 31 upward, stirring the water and pesticides at the bottom of the tank 12, thus ensuring that the pesticides and water are mixed evenly to form a uniform solution. This effectively prevents pesticides from settling at the bottom and achieves the advantage of uniform solution concentration distribution within the medicine tank. As the impeller rotates forward, pushing the water in the circular tube 31 upward, a negative pressure is created in the connecting box 32. Then, water from the tank 12 is drawn into the connecting box 32 and the circular tube 31 through the connecting pipe 33. The pressure difference pushes the one-way partition 34 to flip towards the side closer to the connecting box 32. Figure 2 As shown, the impeller continuously pushes water upwards from inside the circular tube 31, improving the uniformity of the pesticide mixture. The pesticide is then sprayed out through the spray pipe 15 at the lower end of the connecting box 32, thus achieving the function of spraying the pesticide.

[0034] The support plate 21 increases the contact surface with the housing 12, preventing excessive local stress in the housing 12 material at the drive component 22 and ensuring that the housing 12 can stably support the drive component 22.

[0035] When rapid spraying of the agent is required, the drive unit 22 drives the rotating shaft 23 and the impeller to rotate in opposite directions. The impeller drives the liquid in the circular pipe 31 to flow towards the connecting box 32 and the spray pipe 15. The water flow pushes the one-way baffle 34 to flip towards the side closer to the connecting pipe 33. When the one-way baffle 34 flips until it is blocked by the limiting protrusion 35, the one-way baffle 34 blocks the through groove 36, such as... Figure 3 As shown, this prevents water from flowing into the box 12 through the connecting pipe 33, creating positive pressure inside the connecting box 32. This increases the pressure inside the connecting box 32 and the spraying pipe 15, thereby increasing the spraying speed and enabling faster spraying of the pesticide, thus improving work efficiency.

[0036] When a slow spraying of the agent is required, the drive unit 22 stops operating, and the pressure inside the connecting box 32 and the spray pipe 15 is lower than when the impeller rotates in the opposite direction. The agent can flow simultaneously through the round pipe 31 and the connecting pipe 33 to the connecting box 32 and the spray pipe 15, thereby enabling the agent to be sprayed at a slower speed. This achieves the function of controlling the agent spraying speed through the stirring unit 24.

[0037] The connecting plate 37 provides support to the connecting pipe 33 and the connecting box 32, thereby improving the structural stability.

[0038] When spraying is needed, the solenoid valve 16 opens; when spraying is not needed, the solenoid valve 16 closes, thereby controlling the on / off state of the spray pipe 15.

[0039] The pesticide in the spray pipe 15 is sprayed out through the atomizing nozzle 17, which atomizes the pesticide, making the pesticide sprayed evenly and improving the effect of pesticide spraying.

[0040] Sliding the first slider 44 into the groove 42 allows the battery bracket 43 to be installed onto the housing 12. When it is necessary to replace the battery or perform maintenance, pushing the battery bracket 43 causes the first slider 44 to slide out of the groove 42, thereby allowing the battery bracket 43 to be removed from the housing 12, facilitating battery replacement and maintenance.

[0041] The locking block 51 and the housing 12 are respectively engaged with the two ends of the battery bracket 43 along the extension direction of the slide groove 42, thereby locking the battery bracket 43 onto the housing 12 and keeping the battery bracket 43 stable.

[0042] Rotating the knob 54 causes the screw 53, which passes through the locking block 51, to thread into the housing 12. Tightening the screw 53 secures the locking block 51 to the housing 12. The knob 54 facilitates the rotation of the screw 53. The groove 55 accommodates the knob 54, preventing it from colliding with objects or interfering with its position. The inclined surface 56 at the top, tilted away from the knob 54, provides ample space for rotation, further facilitating its movement.

[0043] The mounting slot 41 accommodates the drive unit 22 and the battery bracket 43, thereby reducing the overall height of the drive unit 22 and the housing 12 and preventing the drive unit 22 from being too tall and colliding with or interfering with the helicopter above the housing 12. Furthermore, the heat generated by the drive unit 22 during operation is difficult to dissipate within the mounting slot 41 after the drive unit 22 and battery bracket 43 are placed inside. Therefore, a corrugated air guide plate 25 is provided on the drive component 22. When the medicine box moves with the helicopter, the air flows at the corrugated air guide plate 25, and the air flow is also driven by the rotation of the helicopter's propeller. When the air flows at both ends of the corrugated air guide plate 25, since the cross-section of the corrugated air guide plate 25 is corrugated, both sides of its surface have a concave shape. The air can flow along the concave part of the corrugated air guide plate 25, thereby promoting the air circulation between the two ends of the corrugated air guide plate 25 located outside the mounting groove 41 and the air circulation between the middle part of the corrugated air guide plate 25 located inside the mounting groove 41. This promotes the heat exchange of air inside and outside the mounting groove 41, improves the heat dissipation effect of the drive component 22 inside the mounting groove 41, and prevents the drive component 22 and battery bracket 43 from overheating.

[0044] After adding water and pesticides into the box 12 through the inlet 13, the inlet 13 can be covered by the cap 14 to prevent the pesticide from accidentally spilling out.

[0045] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on the utility model.

Claims

1. A helicopter spraying device for pharmaceuticals, comprising a connecting frame (11), a housing (12), and a stirring mechanism, wherein the housing (12) is fixedly connected to the connecting frame (11), and the stirring mechanism comprises a support plate (21), a driving component (22), a rotating shaft (23), and a stirring component (24), wherein the support plate (21) is fixedly mounted on the housing (12), the driving component (22) is mounted on the support plate (21), the rotating shaft (23) is fixedly connected to the output shaft of the driving component (22), and the stirring component (24) is located inside the housing (12) and is fixedly connected to the rotating shaft (23), characterized in that: A round tube (31) is fixedly connected to the lower end of the box (12), and a connecting box (32) is fixedly connected to the lower end of the round tube (31). The two ends of the round tube (31) are respectively connected to the box (12) and the connecting box (32). A spray pipe (15) is provided at the lower end of the connecting box (32). A connecting pipe (33) is fixedly connected to the side wall of the connecting box (32). The connecting pipe (33) is respectively connected to the bottom of the box (12) and the side wall of the connecting box (32). The stirring component (24) is an impeller located inside the round tube (31).

2. The helicopter pesticide spraying device according to claim 1, characterized in that: The connecting pipe (33) is rotatably connected to a one-way partition (34). The one-way partition (34) is located between the connecting pipe (33) and the connecting box (32). The connecting pipe (33) is provided with a limiting protrusion (35) that engages with the side of the one-way partition (34) away from the connecting box (32). The connecting pipe (33) is provided with a through groove (36) that communicates with the connecting box (32). The limiting protrusion (35) is located at the through groove (36). When the one-way partition (34) engages with the limiting protrusion (35), the one-way partition (34) blocks the through groove (36).

3. The helicopter spraying device for pharmaceuticals according to claim 2, characterized in that: A connecting plate (37) is provided between the box (12) and the connecting pipe (33), and the two ends of the connecting plate (37) are fixedly connected to the lower ends of the box (12) and the connecting pipe (33), respectively.

4. The helicopter spraying device for pharmaceuticals according to claim 1, characterized in that: The spray pipe (15) is equipped with a solenoid valve (16).

5. The helicopter pesticide spraying device according to claim 1, characterized in that: The lower end of the spray pipe (15) is provided with an atomizing nozzle (17).

6. The helicopter pesticide spraying device according to claim 1, characterized in that: The housing (12) is equipped with a battery bracket (43), the housing (12) is provided with a horizontally extending groove (42), and the side wall of the battery bracket (43) is provided with a first slider (44) that cooperates with the groove (42).

7. The helicopter spraying device for pharmaceuticals according to claim 6, characterized in that: The housing (12) is provided with a locking block (51), and the two ends of the battery bracket (43) are respectively engaged with the housing (12) and the locking block (51).

8. The helicopter spraying device for pharmaceuticals according to claim 7, characterized in that: The locking block (51) has a second slider (52) on its side wall that cooperates with the slide groove (42). The locking block (51) is provided with a screw (53) that is threaded to the housing (12). The screw (53) is fixedly connected to a knob (54). The side wall of the knob (54) is provided with anti-slip texture. The locking block (51) is provided with a groove (55) for accommodating the knob (54). The side wall of the groove (55) is provided with an inclined surface (56). The upper end of the inclined surface (56) is inclined away from the knob (54).

9. The helicopter spraying device for pharmaceuticals according to claim 6, characterized in that: The top of the housing (12) is provided with a mounting groove (41). The drive unit (22) and the battery bracket (43) are both located in the mounting groove (41). The drive unit (22) is fixedly connected to a corrugated air guide plate (25). The corrugated air guide plate (25) has a corrugated cross-section. The corrugated air guide plate (25) is located between the drive unit (22) and the battery bracket (43). The middle part of the corrugated air guide plate (25) is located inside the mounting groove (41) and both ends extend out of the mounting groove (41).

10. The helicopter spraying device for pharmaceuticals according to claim 1, characterized in that: The box (12) is provided with a medicine inlet (13), and the box (12) is threadedly connected with a cover (14) that covers the medicine inlet (13).

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