An unmanned aerial vehicle automatic supply platform

Abstract

This invention relates to the field of slope protection, specifically to an automatic drone refueling platform. The platform includes a drone body and a top-opening platform. An electromagnetic turntable is rotatably mounted inside the platform, and the drone body sits atop the turntable. A partition is fixedly connected inside the platform. Through the coordinated operation of the platform, visual inspection equipment, electromagnetic turntable, linkage mechanism, pump, and liquid-blocking mechanism, this invention enables precise drone docking and liquid refueling alignment. The entire process requires no manual intervention and is fully automated, eliminating the risk of direct contact with toxic pesticides and protecting operator health. It also eliminates the cumbersome process of manually loading and unloading pesticide tanks and manually adding pesticides, reducing downtime, lowering labor and time costs, and effectively improving the continuity and overall efficiency of agricultural spraying operations.

Description

Technical Field

[0001] This invention relates to the field of unmanned aerial vehicle (UAV) technology, and more specifically to an automatic UAV resupply platform. Background Technology

[0002] With the rapid development of modern agricultural technology, drones, with their advantages of flexibility, efficiency, wide operating range, and lack of terrain limitations, have been widely used in agricultural production scenarios such as pesticide spraying and farmland inspection, effectively improving the automation level and production efficiency of agricultural operations. In pesticide spraying operations on large areas of farmland, the drone's endurance and tank capacity have become key factors limiting operational efficiency. Due to the limited amount of pesticide that can be carried at one time, frequent returns are required for refilling.

[0003] Currently, the industry generally uses manual refilling to replenish pesticides. Operators need to land the drone, manually remove the pesticide tank, refill it, and then reinstall the tank onto the drone. This method has many drawbacks: First, pesticides are mostly toxic and harmful substances, which can easily come into contact with the skin or be inhaled during manual contact, posing a serious threat to the health of operators and creating significant safety hazards. Second, frequent manual loading, unloading, and refilling operations are labor-intensive, not only consuming a lot of time and manpower but also severely disrupting the spraying process, resulting in low overall operational efficiency and making it difficult to meet the needs of large-scale, intensive agricultural production.

[0004] Therefore, the present invention provides an automatic resupply platform for unmanned aerial vehicles (UAVs) to solve the above-mentioned problems. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, the present invention provides an automatic resupply platform for unmanned aerial vehicles (UAVs) to solve the problems that the prior art not only consumes a lot of time and manpower when resupplying UAVs with medicine, but also easily poses a threat to the health of operators.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] An automatic resupply platform for unmanned aerial vehicles (UAVs) includes a UAV body and a platform with an open top. An electromagnetic turntable is rotatably mounted inside the platform, and the UAV body sits on top of the electromagnetic turntable. A partition is fixedly connected inside the platform, and a storage cavity for storing liquid medicine is formed between the partition and the inner bottom wall of the platform. A fourth driven shaft is rotatably mounted inside the partition, and the top end of the fourth driven shaft is fixedly connected to the bottom of the electromagnetic turntable. An L-shaped frame is fixedly connected to the outer surface of the platform. A pump body is mounted on the side of the L-shaped frame away from the platform. The suction end of the pump body is fixedly connected to a suction pipe, and the other end of the suction pipe passes through the L-shaped frame and is inserted into the storage cavity. The discharge end of the pump body is fixedly connected to a liquid guiding hose, and the other end of the liquid guiding hose is fixedly connected to a liquid filling hard pipe. The other end of the liquid filling hard pipe slides through the L-shaped frame. A linkage mechanism is provided above the partition.

[0008] A medicine tank is fixedly installed on the bottom of the drone body. The side of the medicine tank near the liquid filling tube is fixedly connected to a matching liquid filling tube. A liquid blocking mechanism is provided inside the medicine tank.

[0009] Preferably, the linkage mechanism includes an L-shaped plate fixedly connected to the upper surface of the partition plate, a drive shaft, a first driven shaft and a second driven shaft are rotatably mounted inside the L-shaped plate, and a motor is mounted on the outer surface of the L-shaped plate, with the output end of the motor fixedly connected to one end of the drive shaft.

[0010] Preferably, a first one-way bearing and a second one-way bearing are fixedly mounted on the outer surface of the drive shaft, and the first one-way bearing and the second one-way bearing rotate in opposite directions. A first synchronous pulley is fixedly connected to the outer ring of the first one-way bearing and the outer surface of the first driven shaft. The two first synchronous pulleys are connected by a first synchronous belt drive.

[0011] Preferably, a third driven shaft is rotatably mounted inside the L-shaped plate. The outer surfaces of the third driven shaft and the first driven shaft are both fixedly connected to bevel gears, and the two bevel gears mesh with each other. The outer surfaces of the third driven shaft and the fourth driven shaft are both fixedly connected to second synchronous pulleys, and the two second synchronous pulleys are connected by a second synchronous belt drive.

[0012] Preferably, a third synchronous pulley is fixedly connected to the outer ring of the second one-way bearing and the outer surface of the second driven shaft. The two third synchronous pulleys are connected by a third synchronous belt. Two support plates are fixedly connected to the upper surface of the partition plate. A reciprocating screw is rotatably installed between the two support plates, and the reciprocating screw is fixedly connected to one end of the second driven shaft that is close to each other.

[0013] Preferably, the outer surface of the reciprocating lead screw is threaded with a threaded plate, and a connecting rod is fixedly connected to the side of the threaded plate away from the L-shaped plate. The other end of the connecting rod passes through the platform and the L-shaped frame in sequence and is fixedly connected to a movable plate. The movable plate is fixedly connected to the outer surface of the liquid filling tube.

[0014] Preferably, the liquid-blocking mechanism includes a rotating shaft fixedly connected inside the medicine box, a rotating roller rotatably mounted on the outer surface of the rotating shaft, and a rotating plate fixedly connected to the outer surface of the rotating roller.

[0015] Preferably, a baffle plate adapted to the liquid filling pipe is fixedly connected to the side of the rotating plate near the liquid filling pipe, and the baffle plate is in contact with the inner wall of the medicine box.

[0016] Preferably, the rotating roller has an internal mounting hole, and a torsion spring is fixedly connected inside the mounting hole. The other end of the torsion spring is fixedly connected to the inner wall of the medicine box.

[0017] Preferably, a visual inspection device is fixedly installed on the L-shaped frame.

[0018] The beneficial effects of this invention are as follows:

[0019] 1. This invention, through the coordinated operation of the platform, visual inspection equipment, electromagnetic turntable, linkage mechanism, pump body, and liquid-blocking mechanism, enables precise docking and liquid replenishment of drones. The entire process can be completed automatically without human intervention, eliminating the safety risks of pesticide contact with skin or inhalation for operators who do not need to directly contact toxic pesticides, thus protecting their health. At the same time, it eliminates the cumbersome process of manually loading and unloading the pesticide tank and manually adding the liquid, reducing downtime and lowering labor and time costs. It effectively improves the continuity and overall efficiency of agricultural spraying operations, meeting the actual needs of large-scale intensive agricultural production.

[0020] 2. This invention utilizes the reverse transmission characteristics of a one-way bearing to enable the motor to drive the drone's position adjustment and the advance and retraction of the liquid filling tube in both forward and reverse directions. The structure is compact and the action is highly coordinated. The liquid blocking mechanism drives the liquid blocking plate to automatically reset and seal through a torsion spring, which not only ensures smooth conduction during liquid filling but also avoids leakage and waste of the liquid after filling. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 This is a structural schematic diagram of the hidden drone body of the present invention.

[0023] Figure 3 This is a cross-sectional view that conceals the main body of the drone in this invention.

[0024] Figure 4This is a schematic diagram of the internal structure of the platform of the present invention.

[0025] Figure 5 This is a schematic diagram of the partition and linkage mechanism of the present invention.

[0026] Figure 6 This is a schematic diagram showing the connection between the drive shaft and the first one-way bearing of the present invention.

[0027] Figure 7 This is a schematic diagram showing the connection between the rotating roller and the torsion spring of the present invention.

[0028] In the diagram: 1. UAV body; 2. Platform; 3. L-shaped frame; 4. Visual inspection equipment; 5. Electromagnetic turntable; 6. Partition plate; 7. L-shaped plate; 8. Motor; 9. Drive shaft; 10. First driven shaft; 11. Second driven shaft; 12. First one-way bearing; 13. Second one-way bearing; 14. Third driven shaft; 15. First synchronous pulley; 16. Bevel gear; 17. Fourth driven shaft; 18. Second synchronous pulley; 19. Third synchronous pulley; 20. Support plate; 21. Reciprocating lead screw; 22. Threaded plate; 23. Connecting rod; 24. Liquid filling tube; 25. Pump body; 26. Suction tube; 27. Liquid guiding tube; 28. Medicine tank; 29. ​​Rotating shaft; 30. Rotating roller; 31. Torsion spring; 32. Rotating plate; 33. Baffle plate; 34. Liquid filling tube; 35. Moving plate. Detailed Implementation

[0029] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0030] As attached Figure 1-7 As shown, an automatic resupply platform for unmanned aerial vehicles (UAVs) includes a UAV body 1 and a platform 2 with an open top. An electromagnetic turntable 5 is rotatably installed inside the platform 2. The UAV body 1 sits on top of the electromagnetic turntable 5, and the support of the UAV body 1 is made of magnetic metal. When the UAV is docked, the electromagnetic turntable 5 is energized to generate magnetic force, which can firmly attract and fix the UAV support, preventing the UAV from shifting or shaking during the resupply process, and providing a stable foundation for subsequent accurate resupply.

[0031] A partition 6 is fixedly connected inside the platform 2. A sealed liquid storage chamber is formed between the partition 6 and the inner bottom wall of the platform 2. The liquid storage chamber can store a sufficient amount of pesticide solution in advance to meet the needs of multiple replenishments, reduce the operation of frequently adding pesticide solution to the liquid storage chamber, and further improve the continuity of operation. A pipe for adding pesticide solution is fixedly connected to the back of the liquid storage chamber.

[0032] An L-shaped frame 3 is fixedly connected to the outer surface of the platform 2. A visual inspection device 4 is fixedly installed on the L-shaped frame 3. The visual inspection device 4 uses a high-definition camera and an image recognition module to capture real-time images of the medicine tank 28 at the bottom of the drone body 1 and accurately identify the position information of the liquid filling tube 34. The data is transmitted to the control module to provide accurate position reference for subsequent positioning adjustment and docking operations, thereby realizing automated identification and positioning.

[0033] A pump body 25 is installed on the side of the L-shaped frame 3 away from the platform 2. The suction end of the pump body 25 is fixedly connected to a suction pipe 26. The other end of the suction pipe 26 passes through the L-shaped frame 3 and extends to the bottom of the storage chamber to ensure that the liquid in the storage chamber can be fully extracted. The drain end of the pump body 25 is fixedly connected to a liquid guiding hose 27. The other end of the liquid guiding hose 27 is fixedly connected to a liquid filling hard pipe 24. The other end of the liquid filling hard pipe 24 slides through the L-shaped frame 3 and is set towards the drone body 1. The liquid guiding hose 27 is made of a corrosion-resistant and flexible polymer material, which can adapt to the horizontal movement of the liquid filling hard pipe 24 and avoid the pipe from breaking due to pulling, thus ensuring the continuity of liquid transmission. The pump body 25 is a self-priming centrifugal pump with strong suction and stable operation, which can stably deliver the liquid in the storage chamber to the drone's medicine tank 28.

[0034] A medicine box 28 is fixedly installed at the bottom of the drone body 1. The side of the medicine box 28 near the liquid filling tube 24 is fixedly connected to a liquid filling tube 34 that is compatible with the liquid filling tube 24. The inner diameter of the liquid filling tube 34 is slightly larger than the outer diameter of the liquid filling tube 24, so as to ensure that the liquid filling tube 24 can be smoothly inserted into the liquid filling tube 34 to achieve efficient transfer of medicine.

[0035] A linkage mechanism is provided above the partition 6. The linkage mechanism includes an L-shaped plate 7 fixedly connected to the upper surface of the partition 6. The drive shaft 9, the first driven shaft 10, and the second driven shaft 11 are rotatably mounted inside the L-shaped plate 7. A motor 8 is mounted on the outer surface of the L-shaped plate 7. The output end of the motor 8 is fixedly connected to one end of the drive shaft 9. The motor 8 is a servo motor that can rotate in both directions, which can precisely control the rotation angle and speed. The outer surface of the drive shaft 9 is fixedly mounted with a first one-way bearing 12 and a second one-way bearing 13, and the two rotate in opposite directions. This design allows only the first one-way bearing 12 to drive the subsequent components when the motor 8 rotates in the forward direction, and only the second one-way bearing 13 to drive the subsequent components when it rotates in the reverse direction, realizing the linkage switching of different actions without the need for additional complex switching devices such as clutches.

[0036] The outer ring of the first one-way bearing 12 and the outer surface of the first driven shaft 10 are both fixedly connected to the first synchronous pulley 15. The two first synchronous pulleys 15 are connected by a first synchronous belt. The third driven shaft 14 is rotatably mounted inside the L-shaped plate 7. The outer surfaces of the third driven shaft 14 and the first driven shaft 10 are both fixedly connected to the bevel gears 16, and the two bevel gears 16 mesh with each other. The meshing transmission of the bevel gears 16 can convert the horizontal rotation of the first driven shaft 10 into the vertical rotation of the third driven shaft 14. The outer surfaces of the third driven shaft 14 and the fourth driven shaft 17 are both fixedly connected to the second synchronous pulleys 18. The two second synchronous pulleys 18 are connected by a second synchronous belt. The fourth driven shaft 17 is rotatably mounted inside the partition 6, and its top end is fixedly connected to the bottom of the electromagnetic turntable 5. Through the above transmission links, the forward rotation power of the motor 8 can be sequentially transmitted to the electromagnetic turntable 5, driving the UAV body 1 to rotate and adjust its position.

[0037] The outer ring of the second one-way bearing 13 and the outer surface of the second driven shaft 11 are both fixedly connected to a third synchronous pulley 19. The two third synchronous pulleys 19 are connected by a third synchronous belt. The upper surface of the partition plate 6 is fixedly connected to two support plates 20. A reciprocating screw 21 is rotatably installed between the two support plates 20. The reciprocating screw 21 is fixedly connected to the end of the second driven shaft 11 that is close to each other. The reciprocating screw 21 adopts a bidirectional thread structure, which can realize the reciprocating linear motion of the threaded plate 22. The outer surface of the reciprocating screw 21 is threadedly connected to the threaded plate 22. The side of the threaded plate 22 away from the L-shaped plate 7 is fixedly connected to a connecting rod 23. The other end of the connecting rod 23 passes through the platform 2 and the L-shaped frame 3 in sequence and is fixedly connected to a moving plate 35. The moving plate 35 is fixedly connected to the outer surface of the liquid filling tube 24. The threaded plate 22 and the reciprocating screw 21 are threadedly engaged, which can convert the rotation of the reciprocating screw 21 into the horizontal movement of the liquid filling tube 24, realizing the advancement and retraction of the liquid filling tube 24.

[0038] The medicine box 28 is equipped with a liquid-blocking mechanism, which includes a rotating shaft 29 fixedly connected inside the medicine box 28. A rotating roller 30 is rotatably mounted on the outer surface of the rotating shaft 29. The rotating roller 30 can rotate flexibly around the rotating shaft 29 to reduce motion resistance. A rotating plate 32 is fixedly connected to the outer surface of the rotating roller 30. A liquid-blocking plate 33 adapted to the liquid-adding pipe 34 is fixedly connected to the side of the rotating plate 32 near the liquid-adding pipe 34. The liquid-blocking plate 33 is in contact with the inner wall of the medicine box 28. The liquid-blocking plate 33 is made of corrosion-resistant rubber material to ensure a sealing effect and prevent liquid leakage. An installation hole is opened inside the rotating roller 30. A torsion spring 31 is fixedly connected inside the installation hole. The other end of the torsion spring 31 is fixedly connected to the inner wall of the medicine box 28. The torsion spring 31 has good elastic reset performance and can drive the liquid-blocking plate 33 to automatically reset and seal.

[0039] Working principle

[0040] When the medicine tank 28 of the drone body 1 is low on liquid, the control module guides the drone body 1 to fly above the platform 2 and precisely stop on the top of the electromagnetic turntable 5. At this time, the electromagnetic turntable 5 is energized to generate magnetic force, which attracts and fixes the magnetic metal bracket of the drone body 1, completing the initial fixation of the drone and preventing displacement during subsequent operations.

[0041] The visual inspection device 4 is activated to photograph the position of the liquid filling tube 34 of the medicine tank 28 at the bottom of the drone body 1, and the data is transmitted to the control module. If the liquid filling tube 34 is not aligned with the liquid filling hard tube 24, the control module controls the motor 8 to rotate forward. The power is transmitted through the first one-way bearing 12, the first synchronous pulley 15, the first driven shaft 10, the bevel gear 16, the third driven shaft 14, and the second synchronous pulley 18 to the fourth driven shaft 17, which drives the electromagnetic turntable 5 and the drone body 1 to rotate synchronously until the visual inspection device 4 detects that the liquid filling tube 34 is aligned with the liquid filling hard tube 24, and the motor 8 stops rotating forward.

[0042] After alignment, the control module controls the motor 8 to reverse. Power is transmitted to the reciprocating screw 21 via the second one-way bearing 13, the third synchronous pulley 19, and the second driven shaft 11. The rotation of the reciprocating screw 21 drives the threaded plate 22 to move towards the UAV. Through the connecting rod 23 and the moving plate 35, the liquid filling tube 24 is pushed horizontally and inserted into the liquid filling tube 34. As the liquid filling tube 24 is pushed forward, its end pushes against the baffle plate 33, causing the rotating plate 32 to drive the rotating roller 30 to rotate around the rotating shaft 29. The torsion spring 31 undergoes elastic deformation until the threaded plate 22 moves to the end of the reciprocating screw 21, the liquid filling tube 24 is in place, and the motor 8 stops reversing.

[0043] After docking is completed, pump body 25 is started. Pump body 25 draws liquid medicine from the storage chamber through suction pipe 26, and injects it into medicine tank 28 through liquid guiding hose 27, liquid filling hard pipe 24, and liquid filling pipe 34. When the liquid level in medicine tank 28 reaches the preset value, pump body 25 stops working, and filling is completed.

[0044] After refueling is completed, the control module controls the motor 8 to continue to reverse, the reciprocating screw 21 drives the threaded plate 22 to move in the opposite direction, the liquid filling tube 24 is withdrawn from the liquid filling tube 34, at the same time, the torsion spring 31 elastically resets, driving the rotating roller 30, rotating plate 32 and liquid baffle 33 to reset, the liquid baffle 33 reseals the liquid filling tube 34, after the liquid filling tube 24 is completely withdrawn, the motor 8 stops rotating, the electromagnetic turntable 5 is de-energized, the magnetic force disappears, the UAV body 1 can take off normally and continue to carry out spraying operations.

[0045] It should be noted that in the description of this invention, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0046] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0047] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. An automatic resupply platform for unmanned aerial vehicles (UAVs), comprising a UAV body (1) and a platform (2) with an opening at the top, characterized in that, An electromagnetic turntable (5) is rotatably mounted inside the platform (2). The UAV body (1) sits on top of the electromagnetic turntable (5). A partition (6) is fixedly connected inside the platform (2), and a storage cavity for storing medicine is formed between the partition (6) and the inner bottom wall of the platform (2). A fourth driven shaft (17) is rotatably mounted inside the partition (6). The top end of the fourth driven shaft (17) is fixedly connected to the bottom of the electromagnetic turntable (5). An L-shaped frame (3) is fixedly connected to the outer surface of the platform (2). A pump body (25) is installed on the side of the L-shaped frame (3) away from the platform (2). The suction end of the pump body (25) is fixedly connected to a suction pipe (26). The other end of the suction pipe (26) passes through the L-shaped frame (3) and is inserted into the inside of the liquid storage chamber. The drain end of the pump body (25) is fixedly connected to a liquid guiding hose (27). The other end of the liquid guiding hose (27) is fixedly connected to a liquid adding hard pipe (24). The other end of the liquid adding hard pipe (24) slides through the L-shaped frame (3). A linkage mechanism is provided above the partition (6). The bottom of the drone body (1) is fixedly installed with a medicine box (28). The side of the medicine box (28) near the liquid filling tube (24) is fixedly connected to a liquid filling tube (34) that is compatible with it. The inside of the medicine box (28) is provided with a liquid blocking mechanism.

2. The unmanned aerial vehicle (UAV) automatic resupply platform according to claim 1, characterized in that, The linkage mechanism includes an L-shaped plate (7) fixedly connected to the upper surface of the partition (6). The L-shaped plate (7) has a drive shaft (9), a first driven shaft (10) and a second driven shaft (11) rotatably mounted inside it. The L-shaped plate (7) has a motor (8) mounted on its outer surface. The output end of the motor (8) is fixedly connected to one end of the drive shaft (9).

3. The unmanned aerial vehicle (UAV) automatic resupply platform according to claim 2, characterized in that, The outer surface of the drive shaft (9) is fixedly mounted with a first one-way bearing (12) and a second one-way bearing (13), and the rotation directions of the first one-way bearing (12) and the second one-way bearing (13) are opposite. The outer ring of the first one-way bearing (12) and the outer surface of the first driven shaft (10) are both fixedly connected with a first synchronous pulley (15), and the two first synchronous pulleys (15) are connected by a first synchronous belt drive.

4. The unmanned aerial vehicle (UAV) automatic resupply platform according to claim 3, characterized in that, The L-shaped plate (7) is rotatably mounted with a third driven shaft (14). The outer surfaces of the third driven shaft (14) and the first driven shaft (10) are both fixedly connected with bevel gears (16), and the two bevel gears (16) mesh with each other. The outer surfaces of the third driven shaft (14) and the fourth driven shaft (17) are both fixedly connected with second synchronous pulleys (18), and the two second synchronous pulleys (18) are connected by a second synchronous belt drive.

5. The unmanned aerial vehicle (UAV) automatic resupply platform according to claim 3, characterized in that, The outer ring of the second one-way bearing (13) and the outer surface of the second driven shaft (11) are both fixedly connected to a third synchronous pulley (19). The two third synchronous pulleys (19) are connected by a third synchronous belt. The upper surface of the partition plate (6) is fixedly connected to two support plates (20). A reciprocating screw (21) is rotatably installed between the two support plates (20), and the reciprocating screw (21) is fixedly connected to one end of the second driven shaft (11) that is close to each other.

6. The unmanned aerial vehicle (UAV) automatic resupply platform according to claim 5, characterized in that, The reciprocating screw (21) has a threaded plate (22) threaded on its outer surface. A connecting rod (23) is fixedly connected to the side of the threaded plate (22) away from the L-shaped plate (7). The other end of the connecting rod (23) passes through the platform (2) and the L-shaped frame (3) in sequence and is fixedly connected to a moving plate (35). The moving plate (35) is fixedly connected to the outer surface of the liquid filling tube (24).

7. The unmanned aerial vehicle (UAV) automatic resupply platform according to claim 1, characterized in that, The liquid-blocking mechanism includes a rotating shaft (29) fixedly connected inside the medicine box (28), a rotating roller (30) is rotatably mounted on the outer surface of the rotating shaft (29), and a rotating plate (32) is fixedly connected to the outer surface of the rotating roller (30).

8. An automatic resupply platform for unmanned aerial vehicles according to claim 7, characterized in that, The rotating plate (32) is fixedly connected to a baffle plate (33) that is compatible with the liquid adding pipe (34) on the side near the liquid adding pipe (34), and the baffle plate (33) is in contact with the inner wall of the medicine box (28).

9. An automatic resupply platform for unmanned aerial vehicles according to claim 7, characterized in that, The rotating roller (30) has an installation hole inside, and a torsion spring (31) is fixedly connected inside the installation hole. The other end of the torsion spring (31) is fixedly connected to the inner wall of the medicine box (28).

10. An automatic resupply platform for unmanned aerial vehicles (UAVs) according to claim 1, characterized in that, A visual inspection device (4) is fixedly installed on the L-shaped frame (3).

Images