Automatic spraying device of agricultural unmanned aerial vehicle

Abstract

The utility model provides an agricultural unmanned aerial vehicle automatic spraying device which comprises an unmanned aerial vehicle body, the top of the unmanned aerial vehicle body is provided with a connecting frame, the top of the connecting frame is provided with a pesticide box, a water pump is arranged in the pesticide box, the output of the water pump is provided with a liquid conveying straight pipe, and the bottom of the unmanned aerial vehicle body is fixedly provided with a supporting frame through a hoisting buckle. Two supporting plates are fixed to the bottom of the supporting frame. Compared with the prior art, the sprayer has the following beneficial effects that the sprayer can be stored and protected, so that the sprayer can spray pesticide deeply in the pesticide spraying process, the sprayer can be stored in the protective shell when pesticide is not sprayed, and the sprayer is prevented from being blocked and damaged by dust and sundries; and residual liquid medicine in the spray head can be collected to facilitate follow-up unified treatment, so that pollution and damage of the liquid medicine are avoided, the residual liquid medicine in the protective shell can be quickly cleaned, and switching operation between spraying of different liquid medicine is facilitated.

Description

Technical Field

[0001] The utility model discloses an automatic spraying device for an agricultural unmanned aerial vehicle, belonging to the field of unmanned aerial vehicle spraying devices. Background Art

[0002] Unmanned aerial vehicles, also known as "drones", are unmanned aircraft that are controlled by radio remote control equipment and self-contained program control devices, or are operated completely or intermittently autonomously by on-board computers.

[0003] At present, when drones are used for agricultural pesticide spraying, most of the nozzles are exposed, which is convenient for spraying. However, this setting makes it easy for the nozzles to collide with dust particles and debris in the air during the process of flying back to refill the pesticide after the spraying is completed, which can easily cause the nozzles to be blocked and is not conducive to use. At the same time, the residual liquid in the nozzles will drip along the way during the process of flying back to refill the pesticide, which can easily cause pollution and damage to the surrounding environment. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model aims to provide an automatic spraying device for an agricultural drone.

[0005] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0006] An automatic spraying device for an agricultural drone comprises a drone body, a connecting frame is provided on the top of the drone body, a medicine box is installed on the top of the connecting frame, a water pump is provided in the medicine box, an output of the water pump is provided with a straight infusion tube, a support frame is fixed to the bottom of the drone body by a lifting buckle, two support plates are fixed to the bottom of the support frame, a transverse support panel is fixed to the support plate by bolts, vertical support panels are fixed to the two sides of the transverse support panel by bolts, a protective shell is placed between the transverse support panel and the vertical support panel, a storage cavity is opened inside the protective shell, the bottom opening of the storage cavity is connected to two blocking plates by a spring hinge, a telescopic spraying mechanism is provided in the storage cavity, and a liquid collecting mechanism matched with the telescopic spraying mechanism is provided on the blocking plate.

[0007] Furthermore, the telescopic spraying mechanism includes two electric push rods arranged at the top of the storage cavity, the bottom output end of the electric push rod is connected to the infusion shell, the end of the liquid collecting mechanism passes through the top of the protective shell into the storage cavity and is connected to the infusion hose, the infusion hose is accumulated in the storage cavity, the end of the infusion hose is connected to the infusion shell, the bottom of the infusion shell is connected to a plurality of nozzles, and two groups of extrusion rods are provided on the bottom side of the infusion shell.

[0008] Furthermore, the liquid collecting mechanism includes a material guiding slope opened on the top of the sealing plate, the material guiding slope and the top edge of the sealing plate form an extrusion plane, the bottom end of the extrusion rod is squeezed together with the extrusion plane, a receiving groove is opened inside the material guiding slope, a plurality of grooves are opened at the inner bottom of the receiving groove, an adsorption sponge is placed inside the receiving groove, a plurality of adsorption sponge support blocks are provided at the bottom of the adsorption sponge, and the adsorption sponge support blocks are clamped in the grooves.

[0009] Furthermore, a medicine inlet is provided at the top of the medicine box, a discharge port is provided at the bottom of the side of the medicine box, and sealing covers are provided on the medicine inlet and the discharge port.

[0010] Furthermore, a plurality of ventilation holes are provided on both sides of the storage cavity, and a dustproof net is provided in the through holes.

[0011] Furthermore, an elastic rope is wound around the middle of the infusion hose, and the other end of the elastic rope is connected and fixed to the inner wall of the storage cavity.

[0012] Furthermore, a sliding groove is provided on the extrusion plane, the end of the extrusion rod is slidably connected in the sliding groove, and a solid lubricant is provided between the inner wall of the sliding groove and the end of the extrusion rod.

[0013] Furthermore, two supporting brackets are arranged at the bottom of the drone body, and elastic buffer sleeves are arranged on the supporting brackets.

[0014] Beneficial effects of the utility model:

[0015] The utility model can store and protect the nozzle, so that the nozzle can spread medicine deeply during the spraying process, and can be stored in the protective shell when not spraying medicine, to prevent the nozzle from being blocked and damaged by dust and debris, and can collect the residual liquid medicine in the nozzle for subsequent unified treatment to avoid liquid medicine contamination and damage, so that the residual liquid medicine in the protective shell can be quickly cleaned, and the switching operation between spraying different liquid medicines is convenient.

[0016] Through the design of the telescopic spraying mechanism, the medicine box is driven by the drone body to fly over the cultivated land. During the flight, the water pump and the electric push rod are started. The electric push rod pushes the infusion shell down, and the descent of the infusion shell drives the nozzle and the extrusion rod to descend. The bottom end of the extrusion rod will squeeze the extrusion plane on the top of the baffle plate, and then push the baffle plate to rotate and open. As the baffle plate rotates and opens, the nozzle leaf gradually descends to the bottom of the protective shell. Synchronously, the water pump in the medicine box transports the medicine liquid to the infusion shell through the infusion straight tube and the infusion hose, and the infusion shell sprays the medicine liquid through the nozzle, forming a uniform spraying action. As the drone body flies evenly over the cultivated land, the medicine liquid will be evenly sprayed all over the cultivated land.

[0017] Through the design of the telescopic spraying mechanism, after each spraying of the liquid medicine in the medicine box is completed, the medicine box needs to be brought back to the batching point by the drone body to fill the medicine box. During this return process, in order to prevent the nozzle from being blocked and damaged by dust and debris, the nozzle will be stored inside the protective shell for protection. The specific storage and protection process is as follows: start the electric push rod, and the electric push rod contracts to drive the nozzle and the extrusion rod to rise and be stored in the storage cavity. As the nozzle and the extrusion rod are stored in the storage cavity, the two baffles will reset and move to the bottom opening of the storage cavity under the action of the spring hinge to block the storage cavity.

[0018] Through the design of the liquid collecting mechanism, during the process of the nozzle being stored and flying back, the residual liquid medicine in the nozzle, the infusion hose and the infusion straight tube will fall onto the adsorption sponge on the baffle plate, and the adsorption sponge will absorb the remaining liquid medicine to avoid contamination by the liquid medicine and facilitate the treatment of the liquid medicine. At the same time, the odor of the liquid medicine will flow out under the action of the ventilation holes on both sides, so that the liquid medicine will not pollute the inner wall of the storage cavity. In this way, when one liquid medicine is used up and another liquid medicine needs to be sprayed, it is only necessary to replace the adsorption sponge and rinse it to complete the anti-interference action of the storage cavity.

[0019] Through the design of the ventilation holes, during the flight of the device, some of the liquid medicine will accumulate inside the storage cavity, and the liquid medicine will diffuse in the storage cavity. The design of the ventilation holes can allow external airflow to enter the storage cavity through the ventilation holes during the flight of the drone body and bring out the diffused liquid medicine, thereby reducing the contamination of the storage cavity by the liquid medicine.

[0020] Through the design of the elastic rope, when the nozzle is stored in the storage cavity, the infusion hose will not be pulled. The infusion hose will be stacked and stored in the storage cavity under the pulling of the elastic rope. When the nozzle is extended for spraying, the infusion hose will be straightened for use as the nozzle is extended, and at this time, the elastic rope will be stretched.

[0021] Through the design of the sliding groove and the solid lubricant, a movable space is provided between the extrusion rod and the extrusion plane. At the same time, the solid lubricant can reduce the friction between the two, thereby satisfying the pushing action without causing wear to the two. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1This is a three-dimensional structure diagram of an automatic spraying device for agricultural drones in the utility model. Figure 1 ;

[0024] Figure 2 This is a three-dimensional structure diagram of an automatic spraying device for agricultural drones in the utility model. Figure 2 ;

[0025] Figure 3 This is a partial structural schematic diagram of an automatic spraying device for an agricultural drone of the utility model;

[0026] Figure 4 This is a schematic diagram of the internal structure of a protective shell of an automatic spraying device for an agricultural drone of the utility model;

[0027] Figure 5 The utility model is a schematic diagram of the shielding plate structure of an automatic spraying device of an agricultural drone.

[0028] In the figure, 1. UAV body; 2. Support bracket; 3. Connecting frame; 4. Medicine box; 5. Feed inlet; 6. Lifting buckle; 7. Support frame; 8. Support plate; 9. Horizontal support panel; 10. Vertical support panel; 11. Protective shell; 12. Storage cavity; 13. Shielding plate; 14. Material guide slope; 15. Extrusion plane; 16. Receiving groove; 17. Groove; 18. Adsorption sponge; 19. Electric push rod; 20. Infusion shell; 21. Nozzle; 22. Extrusion rod; 23. Ventilation hole; 24. Infusion hose; 25. Infusion straight tube; 26. Spring hinge. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-Figure 5The utility model provides a technical solution for an automatic spraying device for an agricultural UAV, comprising a UAV body 1, a connecting frame 3 is provided on the top of the UAV body 1, a medicine box 4 is installed on the top of the connecting frame 3, a medicine inlet 5 is provided on the top of the medicine box 4, a discharge port is provided on the side bottom of the medicine box 4, a blocking cover is provided on the medicine inlet 5 and the discharge port, a water pump is provided in the medicine box 4, and a straight infusion pipe 25 is provided at the output of the water pump, a supporting frame 7 is fixed to the bottom of the UAV body 1 through a lifting buckle 6, two supporting plates 8 are fixed to the bottom of the supporting frame 7, the supporting plate 8 is fixed with a transverse supporting panel 9 by bolts, and vertical supporting panels 10 are fixed to the two sides of the transverse supporting panel 9 by bolts, a protective shell 11 is placed between the transverse supporting panel 9 and the vertical supporting panel 10, and the protective shell 11 is provided with a protective shell 11. A storage chamber 12 is provided inside, and the bottom opening of the storage chamber 12 is connected to two blocking plates 13 through a spring hinge 26. A telescopic spraying mechanism is provided in the storage chamber 12, and a liquid collecting mechanism matched with the telescopic spraying mechanism is provided on the blocking plate 13. Two supporting brackets 2 are provided at the bottom of the drone body 1, and an elastic buffer sleeve is provided on the supporting bracket 2. The utility model can store and protect the nozzle 21, so that the nozzle 21 can perform the spraying action at a deep depth during the spraying process, and can be stored in the protective shell 11 when not spraying, so as to prevent the nozzle 21 from being blocked and damaged by dust and debris, and the residual liquid medicine in the nozzle 21 can be collected for subsequent unified treatment to avoid liquid medicine pollution and damage, so that the residual liquid medicine in the protective shell 11 can be quickly cleaned, and the switching operation between spraying different liquid medicines is convenient.

[0031] See also Figure 4The telescopic spraying mechanism includes two electric push rods 19 arranged at the top of the storage chamber 12, the bottom output end of the electric push rod 19 is connected to the infusion shell 20, the end of the liquid collecting mechanism passes through the top of the protective shell 11 into the storage chamber 12 and is connected to the infusion hose 24, the infusion hose 24 is accumulated in the storage chamber 12, the end of the infusion hose 24 is connected to the infusion shell 20, the bottom of the infusion shell 20 is connected with a plurality of nozzles 21, and the bottom side of the infusion shell 20 is provided with two groups of extrusion rods 22; through the design of the telescopic spraying mechanism, the medicine box 4 is driven by the drone body 1 to fly over the cultivated land, and the flight process In the process, the water pump and the electric push rod 19 are started. The electric push rod 19 pushes the infusion shell 20 to descend. The descent of the infusion shell 20 drives the nozzle 21 and the extrusion rod 22 to descend. The bottom end of the extrusion rod 22 will squeeze the extrusion plane 15 on the top of the baffle plate 13, thereby pushing the baffle plate 13 to rotate and open. As the baffle plate 13 rotates and opens, the nozzle 21 gradually descends to the bottom of the protective shell 11. Synchronously, the water pump in the medicine box 4 transports the medicine liquid to the infusion shell 20 through the infusion straight tube 25 and the infusion hose 24. The infusion shell 20 sprays the medicine liquid through the nozzle 21, forming a uniform withdrawal action. As the drone body 1 flies evenly over the cultivated land, the medicine liquid will be evenly sprayed all over the cultivated land.

[0032] See also Figure 5 The liquid collecting mechanism comprises a material guiding slope 14 provided on the top of the blocking plate 13, the material guiding slope 14 and the top edge of the blocking plate 13 form an extrusion plane 15, the bottom end of the extrusion rod 22 is squeezed together with the extrusion plane 15, a receiving groove 16 is provided inside the material guiding slope 14, a plurality of grooves 17 are provided at the inner bottom of the receiving groove 16, an adsorption sponge 18 is placed inside the receiving groove 16, a plurality of adsorption sponge support blocks are provided at the bottom of the adsorption sponge 18, and the adsorption sponge support blocks are clamped in the groove 17; through the design of the liquid collecting mechanism, at the nozzle During the process of storage and return 21, the residual medicine in the nozzle 21, the infusion hose 24 and the infusion straight tube 25 will fall onto the adsorption sponge 18 on the baffle plate 13, and the adsorption sponge 18 will absorb the remaining medicine to avoid contamination by the medicine and facilitate the treatment of the medicine. At the same time, the odor of the medicine will flow out under the action of the ventilation holes 23 on both sides, so that the medicine will not pollute the inner wall of the storage cavity 12. In this way, when one kind of medicine is used up and another kind of medicine needs to be sprayed, it is only necessary to replace the adsorption sponge 18 and rinse it to complete the anti-interference action of the storage cavity 12.

[0033] See also Figure 4A plurality of ventilation holes 23 are provided on both sides of the storage chamber 12, and a dustproof net is provided in the through hole 23; through the design of the ventilation holes 23, during the flight spraying process of the device, part of the liquid medicine will be retained in the storage chamber 12, and the liquid medicine will diffuse in the storage chamber 12. The design of the ventilation holes 23 can allow the external airflow to enter the storage chamber 12 through the ventilation holes 23 during the flight of the drone body 1 and bring out the diffused liquid medicine, thereby reducing the contamination of the storage chamber 12 by the liquid medicine.

[0034] See also Figure 4 An elastic rope is wrapped around the middle of the infusion hose 24, and the other end of the elastic rope is connected and fixed to the inner wall of the storage cavity 12. Through the design of the elastic rope, when the nozzle 21 is stored in the storage cavity 12, the infusion hose 24 will not be pulled, and the infusion hose 24 will be stacked and stored in the storage cavity 12 under the pulling of the elastic rope. When the nozzle 21 is extended for spraying, the infusion hose 24 will be straightened for use as the nozzle 21 is extended, and at this time, the elastic rope will be stretched.

[0035] A sliding groove is provided on the extrusion plane 16, and the end of the extrusion rod 22 is slidably connected in the sliding groove. A solid lubricant is provided between the inner wall of the sliding groove and the end of the extrusion rod 22. Through the design of the sliding groove and the solid lubricant, a movable space is provided between the extrusion rod 22 and the extrusion plane 16. At the same time, the solid lubricant can reduce the friction between the two, thereby satisfying the pushing action without causing wear on both.

[0036] When in use, the mixed liquid medicine is poured into the medicine box 4 through the feed port 5, and then the medicine box 4 is driven by the drone body 1 to fly over the cultivated land. During the flight, the water pump and the electric push rod 19 are started, and the electric push rod 19 pushes the infusion shell 20 to descend. The infusion shell 20 descends and drives the nozzle 21 and the extrusion rod 22 to descend. The bottom end of the extrusion rod 22 squeezes the extrusion plane 15 on the top of the baffle plate 13, and then pushes the baffle plate 13 to rotate and open. As the baffle plate 13 rotates and opens, the nozzle 21 gradually descends to the bottom of the protective shell 11. Synchronously, the water pump in the medicine box 4 transports the liquid medicine to the infusion shell 20 through the infusion straight tube 25 and the infusion hose 24. The infusion shell 20 sprays the liquid medicine through the nozzle 21, forming a uniform spraying action. As the drone body 1 flies evenly over the cultivated land, the liquid medicine will be evenly sprayed to all parts of the cultivated land.

[0037] After each spraying of the liquid medicine in the medicine box 4 is completed, the medicine box 4 needs to be brought back to the batching point by the drone body 1 to fill the medicine box 4. During this return journey, in order to prevent the nozzle 21 from being blocked and damaged by dust and debris, the nozzle 21 will be stored in the protective shell 11 for protection. The specific storage and protection process is as follows: start the electric push rod 19, the electric push rod 19 contracts and drives the nozzle 21 and the extrusion rod 22 to rise and be stored in the storage chamber 12. As the nozzle 21 and the extrusion rod 22 are stored in the storage chamber 12, the two shielding plates 13 will reset and move to the bottom opening of the storage chamber 12 under the action of the spring hinge 26 to block the storage chamber 12;

[0038] When the nozzle 21 is stored and the drone body 1 flies back, the residual liquid medicine in the nozzle 21, the infusion hose 24 and the infusion straight tube 25 will fall onto the adsorption sponge 18 on the baffle plate 13. The adsorption sponge 18 absorbs the remaining liquid medicine to avoid contamination by the liquid medicine and facilitates the treatment of the liquid medicine. At the same time, the odor of the liquid medicine will flow out under the action of the ventilation holes 23 on both sides, so that the liquid medicine will not pollute the inner wall of the storage cavity 12. In this way, when one liquid medicine is used up and another liquid medicine needs to be sprayed, the adsorption sponge 18 only needs to be replaced and rinsed to complete the anti-interference action of the storage cavity 12.

[0039] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An automatic spraying device for agricultural drones, characterized in that: The invention comprises an unmanned aerial vehicle body (1), a connecting frame (3) is provided on the top of the unmanned aerial vehicle body (1), a medicine box (4) is installed on the top of the connecting frame (3), a water pump is provided in the medicine box (4), an output of the water pump is provided with a straight infusion pipe (25), a supporting frame (7) is fixed on the bottom of the unmanned aerial vehicle body (1) through a lifting buckle (6), two supporting plates (8) are fixed on the bottom of the supporting frame (7), and a transverse supporting panel (9) is fixed to the supporting panel (8) through bolts, and the transverse supporting panel (9) is fixed to the supporting panel (8) through bolts. Vertical support panels (10) are fixed to both sides of the plate (9) by bolts, a protective shell (11) is placed between the horizontal support panel (9) and the horizontal support panel (10), a storage chamber (12) is provided inside the protective shell (11), the bottom opening of the storage chamber (12) is connected to two sealing plates (13) through a spring hinge (26), a telescopic spraying mechanism is provided in the storage chamber (12), and a liquid collecting mechanism matched with the telescopic spraying mechanism is provided on the sealing plate (13).

2. The automatic spraying device for agricultural drone according to claim 1, characterized in that: The telescopic spraying mechanism comprises two electric push rods (19) arranged at the top of the storage chamber (12); the bottom output end of the electric push rod (19) is connected to the infusion shell (20); the end of the liquid collecting mechanism passes through the top of the protective shell (11) into the storage chamber (12) and is connected to the infusion hose (24); the infusion hose (24) is accumulated in the storage chamber (12); the end of the infusion hose (24) is connected to the infusion shell (20); the bottom of the infusion shell (20) is connected to a plurality of nozzles (21); and two groups of extrusion rods (22) are provided on the bottom side of the infusion shell (20).

3. The automatic spraying device for agricultural drone according to claim 2, characterized in that: The liquid collecting mechanism comprises a material guiding inclined surface (14) provided on the top of the sealing plate (13); the material guiding inclined surface (14) and the top edge of the sealing plate (13) form an extrusion plane (15); the bottom end of the extrusion rod (22) is extruded together with the extrusion plane (15); a receiving groove (16) is provided inside the material guiding inclined surface (14); a plurality of grooves (17) are provided at the inner bottom of the receiving groove (16); an adsorption sponge (18) is placed inside the receiving groove (16); a plurality of adsorption sponge support blocks are provided at the bottom of the adsorption sponge (18); the adsorption sponge support blocks are snap-fitted into the grooves (17).

4. The automatic spraying device for agricultural drone according to claim 3, characterized in that: The top of the medicine box (4) is provided with a medicine inlet (5), the bottom of the side of the medicine box (4) is provided with a discharge port, and both the medicine inlet (5) and the discharge port are provided with sealing covers.

5. The automatic spraying device for agricultural drone according to claim 4, characterized in that: A plurality of ventilation holes (23) are provided on both sides of the storage cavity (12), and dustproof nets are provided in the ventilation holes (23).

6. The automatic spraying device for agricultural drone according to claim 5, characterized in that: An elastic rope is wound around the middle of the infusion hose (24), and the other end of the elastic rope is connected and fixed to the inner wall of the storage cavity (12).

7. The automatic spraying device for agricultural drone according to claim 6, characterized in that: A sliding groove is provided on the extrusion plane (15), the end of the extrusion rod (22) is slidably connected in the sliding groove, and a solid lubricant is provided between the inner wall of the sliding groove and the end of the extrusion rod (22).

8. The automatic spraying device for agricultural drone according to claim 7, characterized in that: Two support brackets (2) are arranged at the bottom of the drone body (1), and elastic buffer sleeves are arranged on the support brackets (2).

Images