Unmanned aerial vehicle automatic supply platform and unmanned aerial vehicle

Abstract

The invention discloses an unmanned aerial vehicle automatic supply platform and an unmanned aerial vehicle, and belongs to the technical field of unmanned aerial vehicles. Comprising a platform body and a liquid medicine box, the platform body comprises a pedestal, a storage cavity is formed in the pedestal and used for storing liquid medicine, an arc-shaped cover is installed on the top face of the pedestal, a corrugated pipe is connected to the side face of the arc-shaped cover, a conveying piece is arranged on the side face of the pedestal and conveys the liquid medicine into the corrugated pipe, a plug is connected to the free end of the corrugated pipe, and a microswitch is installed on the outer side of the plug. A telescopic piece is installed on the back face of the arc-shaped cover and drives the plug to move horizontally, the top face of the pedestal is rotationally connected with a rotating disc, a driving piece is installed in the pedestal and drives the rotating disc to rotate, a weighing piece is installed in the rotating disc, and an electromagnetic chuck is installed on the top face of the weighing piece. The liquid medicine box comprises a box body; according to the automatic supply platform applied to the unmanned aerial vehicle and the unmanned aerial vehicle, an automatic medicine feeding function can be realized, so that the influence of supply operation on a flying hand is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicles (UAVs), and in particular to an automatic supply platform for UAVs and a UAV. Background Art

[0002] Plant protection drones, also known as unmanned aerial vehicles, are unmanned aircraft used for agricultural and forestry plant protection operations. This type of drone consists of three parts: a flight platform (fixed-wing aircraft, helicopter, multi-rotor aircraft), a navigation flight control, and a spraying mechanism. Spraying operations are carried out through ground remote control or navigation flight control, and can spray pesticides, seeds, powders, etc.

[0003] For example, the Chinese patent announcement number is 202120838572.2, which is an automatic supply platform for drones. From this technical solution, it can be seen that multi-axis rotor aircraft are currently the mainstream of plant protection drones. Compared with the other two structures, they are light in weight, low in cost, and widely popular. However, the aerial operation capability of this multi-axis rotor aircraft is limited, and the corresponding medicine needs to be replenished for each takeoff and landing. Among them, manual dosing requires the preparation of medicines in the field and then filling, and each operation takes a long time. Some drones on the market now use autonomous flight when in use, which reduces the impact of this supply operation on pilots to a certain extent. However, there is still a lack of a more effective and direct measure to solve the impact of the supply operation on pilots.

[0004] Therefore, those skilled in the art have proposed a drone automatic supply platform and a drone, aiming to solve the problem that the existing automation level of replenishing pesticides for plant protection drones is not high enough. Summary of the Invention

[0005] The purpose of the present invention is to provide a UAV automatic supply platform and a UAV to solve the problems raised in the above background technology.

[0006] In view of the above problems, the technical solution proposed by the present invention is: An automatic supply platform for a UAV and the UAV, comprising a platform body and a medicine tank.

[0007] Furthermore, the platform body includes a base, a storage cavity is provided inside the base, the storage cavity is used to store medicine, the storage cavity is connected to a supply pipe, and the free end of the supply pipe is connected to a one-way valve, and a liquid level sensor is installed inside the storage cavity, and the liquid level sensor is used to monitor the height of the medicine inside the storage cavity.

[0008] Furthermore, an arc-shaped cover is installed on the top surface of the pedestal, and a bellows is connected to the side of the arc-shaped cover. A conveying member is provided on the side of the pedestal, and the conveying member conveys the medicine into the bellows. The conveying member includes a pump installed on the side of the pedestal, and a first conduit is connected between the input end of the pump and the storage chamber, and a second conduit is connected between the output end of the pump and the bellows, and the free end of the first conduit is close to the bottom surface of the storage chamber.

[0009] Furthermore, the free end of the bellows is connected to a plug, the medicine box includes a box body, a mounting cavity is opened on the side of the box body, a one-way piece is installed inside the mounting cavity, the plug is inserted into the one-way piece, and the medicine flows into the box body, and the one-way piece is used to prevent the medicine in the box from flowing back, the plug includes a joint connected to the free end of the bellows, the free end of the joint is connected to a push rod, a plurality of through holes are opened on the outside of the push rod, the one-way piece includes a fixed sleeve installed in the mounting cavity, a tapered hole is opened inside the fixing sleeve, a card ball slides in the tapered hole, a spring is connected to one side of the card ball and the tapered hole, the card ball blocks the other side of the tapered hole, the push rod squeezes the card ball, and a plurality of connected openings are opened on the side where the tapered hole and the mounting cavity are connected, the spring is installed on the side with a larger radius of the tapered hole, and the card ball blocks the side with a smaller radius of the tapered hole, and the bottom surface of the box body is connected with a nozzle.

[0010] Furthermore, a telescopic part is installed on the back of the arc cover, and the telescopic part drives the plug to move horizontally. The telescopic part is an electric telescopic rod installed on the outside of the arc cover, and a connecting strip is installed on the side of the joint. The telescopic end of the electric telescopic rod is connected to the connecting strip.

[0011] Furthermore, a turntable is rotatably connected to the top surface of the pedestal, a driving member is installed inside the pedestal, and the driving member drives the turntable to rotate. A fixed cavity is opened inside the pedestal, and the driving member includes a motor and a reducer installed in the fixed cavity, the output end of the motor is connected to the input end of the reducer, and the output end of the reducer is transmission-connected with a connecting shaft, a rotating shaft is rotatably connected between the center of the bottom surface of the turntable and the center of the top surface of the pedestal, gears are installed on the outside of the connecting shaft and the rotating shaft, and the gears are meshed with each other. A heat dissipation groove connected to the fixed cavity is opened on the side of the pedestal.

[0012] Furthermore, a weighing piece is installed inside the turntable, an electromagnetic suction cup is installed on the top surface of the weighing piece, and a cavity is opened on the top surface of the turntable. The weighing piece includes a weighing plate suspended in the cavity and a pressure sensor installed on the bottom surface of the cavity, and the weighing plate and the pressure sensor are connected.

[0013] Furthermore, positioning parts are provided on the top of the arc cover and the side of the box body, and the positioning parts align the plug and the one-way part. The positioning parts include a diffuse reflection infrared receiver installed obliquely on the top surface of the arc cover and a reflective plate installed on the side of the box body. A micro switch is installed on the outside of the plug, and the micro switch is installed on the side of the connector and is against the side of the box body.

[0014] On the other hand, the present invention also proposes a drone, such as a drone automatic supply platform applied to claims 1-9, including a plant protection drone, the medicine tank is installed on the bottom surface of the plant protection drone, the bracket of the plant protection drone is made of magnetic metal, and the plant protection drone is parked on the top surface of the electromagnetic suction cup, and the bracket of the plant protection drone is adsorbed by the electromagnetic suction cup.

[0015] Compared to existing technologies, the present invention offers the following advantages: It reduces manual intervention through a series of automated design features. Previously, manual dosing required tedious dispensing and filling operations in the field, consuming significant time and effort, and requiring frequent pilot involvement. However, this platform and drone implement automated dosing. The platform's conveyor automatically transfers the liquid medicine from the storage chamber to the tank, eliminating the need for manual operation by the pilot. This significantly reduces the pilot's reliance on replenishment operations, allowing the pilot to focus more on drone flight control and operation planning, effectively improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of a first three-dimensional structure of the UAV automatic refueling platform and the UAV disclosed in an embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of the structure of the A structure in the middle; Figure 3 This is a schematic diagram of a first cross-sectional structure of the UAV automatic refueling platform and the UAV disclosed in an embodiment of the present invention; Figure 4 This is a schematic diagram of a second three-dimensional structure of the UAV automatic refueling platform and the UAV disclosed in an embodiment of the present invention; Figure 5 This is a schematic diagram of the second cross-sectional structure of the UAV automatic resupply platform and the UAV disclosed in an embodiment of the present invention.

[0017] In the figure: 100, platform body; 1001, base; 1002, arc cover; 1003, heat dissipation slot; 1004, turntable; 1005, electromagnetic suction cup; 1006, electric telescopic rod; 1007, diffuse reflection infrared receiver; 1008, bellows; 1009, joint; 1010, connecting strip; 1011, micro switch; 1012, push rod; 1013, through hole; 1014, storage chamber; 1015, pump; 1016, first Conduit; 1017, second conduit; 1018, supply pipe; 1019, one-way valve; 1020, weighing plate; 1021, fixed chamber; 1022, gear; 1023, motor; 1024, reducer; 1025, rotating shaft; 200, medicine tank; 2001, box body; 2002, fixing sleeve; 2003, tapered hole; 2004, spring; 2005, blocking ball; 2006, opening; 2007, reflector; 300, plant protection drone. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figure 1 - Figure 5 The present invention provides a technical solution: an automatic supply platform for unmanned aerial vehicles, including a platform body 100 and a medicine tank 200.

[0020] As an embodiment of the present invention, further, the platform body 100 includes a base 1001, and a storage cavity 1014 is provided inside the base 1001. The storage cavity 1014 is used to store medicine. The storage cavity 1014 is connected to a supply pipe 1018, and the free end of the supply pipe 1018 is connected to a one-way valve 1019. A liquid level sensor is installed inside the storage cavity 1014, and the liquid level sensor is used to monitor the height of the medicine inside the storage cavity 1014.

[0021] As an embodiment of the present invention, further, an arc-shaped cover 1002 is installed on the top surface of the pedestal 1001, and a bellows 1008 is connected to the side of the arc-shaped cover 1002. A conveying part is provided on the side of the pedestal 1001, and the conveying part conveys the medicine into the bellows 1008. The conveying part includes a pump 1015 installed on the side of the pedestal 1001, and a first conduit 1016 is connected between the input end of the pump 1015 and the storage chamber 1014, and a second conduit 1017 is connected between the output end of the pump 1015 and the bellows 1008, and the free end of the first conduit 1016 is close to the bottom surface of the storage chamber 1014.

[0022] As an embodiment of the present invention, further, the free end of the bellows 1008 is connected to a plug, the medicine box 200 includes a box body 2001, a mounting cavity is opened on the side of the box body 2001, a one-way member is installed inside the mounting cavity, the plug is inserted into the one-way member, and the medicine flows into the box body 2001, the one-way member is used to prevent the medicine in the box body 2001 from flowing back, the plug includes a joint 1009 connected to the free end of the bellows 1008, the free end of the joint 1009 is connected to a push rod 1012, and a plurality of through holes 1013 are opened on the outside of the push rod 1012, and the one-way member includes a fixed member installed in the mounting cavity. Sleeve 2002, a conical hole 2003 is provided inside the fixed sleeve 2002, a card ball 2005 slides in the conical hole 2003, a spring 2004 is connected to the card ball 2005 and one side of the conical hole 2003, the card ball 2005 blocks the other side of the conical hole 2003, the push rod 1012 squeezes the card ball 2005, and a plurality of interconnected openings 2006 are provided on the side where the conical hole 2003 and the mounting cavity are connected, the spring 2004 is installed on the side with a larger radius of the conical hole 2003, the card ball 2005 blocks the side with a smaller radius of the conical hole 2003, and the bottom surface of the box body 2001 is connected to the nozzle.

[0023] As an embodiment of the present invention, further, a telescopic part is installed on the back of the arc cover 1002, and the telescopic part drives the plug to move horizontally. The telescopic part is an electric telescopic rod 1006 installed on the outside of the arc cover 1002, and a connecting strip 1010 is installed on the side of the joint 1009, and the telescopic end of the electric telescopic rod 1006 is connected to the connecting strip 1010.

[0024] As an embodiment of the present invention, further, the top surface of the pedestal 1001 is rotatably connected to a turntable 1004, a driving member is installed inside the pedestal 1001, the driving member drives the turntable 1004 to rotate, a fixed cavity 1021 is opened inside the pedestal 1001, the driving member includes a motor 1023 and a reducer 1024 installed in the fixed cavity 1021, the output end of the motor 1023 is connected to the input end of the reducer 1024, the output end of the reducer 1024 is transmission-connected with a connecting shaft, a rotating shaft 1025 is rotatably connected between the center of the bottom surface of the turntable 1004 and the center of the top surface of the pedestal 1001, gears 1026 are installed on the outside of the connecting shaft and the rotating shaft 1025, the gears 1026 are meshed with each other, and a heat dissipation groove 1003 connected to the fixed cavity 1021 is opened on the side of the pedestal 1001.

[0025] As an embodiment of the present invention, further, a weighing piece is installed inside the turntable 1004, an electromagnetic suction cup 1005 is installed on the top surface of the weighing piece, and an opening is opened on the top surface of the turntable 1004. The weighing piece includes a weighing disc 1020 suspended in the opening cavity and a pressure sensor installed on the bottom surface of the opening cavity. The weighing disc 1020 and the pressure sensor are connected.

[0026] As an embodiment of the present invention, further, positioning parts are provided on the top of the arc cover 1002 and the side of the box body 2001, and the positioning parts align the plug and the one-way part. The positioning parts include a diffuse reflection infrared receiver 1007 obliquely installed on the top surface of the arc cover 1002 and a reflective plate 2007 installed on the side of the box body 2001. A micro switch 1011 is installed on the outside of the plug, and the micro switch 1011 is installed on the side of the connector 1009 and is against the side of the box body 2001.

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figure 1 - Figure 5 The present invention provides a technical solution: a drone, including a plant protection drone 300, a medicine tank 200 is installed on the bottom surface of the plant protection drone 300, the bracket of the plant protection drone 300 is made of magnetic metal, and the plant protection drone 300 is parked on the top surface of the electromagnetic suction cup 1005, and the bracket of the plant protection drone 300 is adsorbed by the electromagnetic suction cup 1005.

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1 - Figure 5 The present invention provides a technical solution: an automatic supply platform for unmanned aerial vehicles and an unmanned aerial vehicle, comprising the following steps: S1. After completing the operation, the plant protection drone 300 flies to the top of the automatic supply platform according to the navigation system. The top surface of the turntable 1004 of the platform body 100 is installed with an electromagnetic suction cup 1005. The bracket of the plant protection drone 300 is made of magnetic metal. When the drone stops on the top surface of the electromagnetic suction cup 1005, the bracket is adsorbed, ensuring that the drone is stably positioned during the supply process.

[0031] S2. The medicine tank 200 is installed on the bottom surface of the plant protection UAV 300. A reflector 2007 is provided on the side of the box 2001. A diffuse reflection infrared receiver 1007 is installed at an angle on the top surface of the arc cover 1002. When the UAV is fixed on the top surface of the electromagnetic suction cup 1005, the pressure monitored by the pressure sensor increases. At this time, the controller will receive the signal sent by the pressure sensor, and the motor 1023 will start. The power it outputs is adjusted by the reducer 1024, causing the turntable 1004 to rotate slowly until the reflector 2007 reflects the infrared light emitted by the diffuse reflection infrared receiver 1007 and is received by the diffuse reflection infrared receiver 1007. At this time, the signal received by the diffuse reflection infrared receiver 1007 will be enhanced, and the controller will receive this change, and then control the motor 1023 to turn off. At this time, the plug is aligned with the one-way part of the side mounting cavity of the medicine tank 200.

[0032] S3. After the motor 1023 stops, the controller controls the electric telescopic rod 1006 to extend, and then the push rod 1012 squeezes the card ball 2005, so that the card ball 2005 overcomes the elastic force of the spring 2004 and moves to the side with a larger radius of the tapered hole 2003 until the micro switch 1011 is squeezed and sends a signal to the controller. Then the controller controls the electric telescopic rod 1006 to stop extending, and controls the pump 1015 to start, and the pump 1015 is turned on. The medicine is extracted from the storage chamber 1014 through the first conduit 1016. The free end of the first conduit 1016 is close to the bottom surface of the storage chamber 1014 so that the medicine can be fully extracted. After the medicine is pressurized by the pump 1015, it is transported to the bellows 1008 through the second conduit 1017. Thereafter, the medicine flows into the box body 2001 of the medicine box 200 through the through hole 1013 on the outside of the push rod 1012, the tapered hole 2003 and the opening 2006 opened on the side connected to the installation cavity.

[0033] S4. During the medicine replenishment process, the weighing device installed inside the turntable 1004 monitors the weight change of the medicine tank 200 in real time. The weighing device includes a weighing plate 1020 suspended in the opening on the top surface of the turntable 1004 and a pressure sensor installed on the bottom surface of the opening. The medicine tank 200 is placed on the weighing plate 1020. The pressure sensor converts the weight signal into an electrical signal and transmits it to the controller through the circuit. Therefore, the controller can grasp the amount of medicine replenishment in real time.

[0034] S5. When the controller detects that the weight of the medicine has reached the set value, the pump 1015 stops working, the electric telescopic rod 1006 contracts, and drives the plug to be pulled out of the one-way part of the medicine tank 200 through the connecting strip 1010. The blocking ball 2005 is reset under the action of the spring 2004 and blocks the end with the smaller radius of the tapered hole 2003, so that the medicine cannot flow out of the box 2001. Then the electromagnetic suction cup 1005 is powered off, and the plant protection drone 300 is released from adsorption. Under the control of the pilot or the automatic driving program, it takes off and continues to perform subsequent operations. At the same time, the storage chamber 1014 is replenished with medicine through the supply pipe 1018 and the one-way valve 1019. The liquid level sensor monitors the height of the medicine in the storage chamber 1014 in real time. When the liquid level of the medicine is low, the staff is reminded to replenish the medicine in time to prepare for the next drone replenishment.

[0035] It should be noted that the standard parts used in this application document can all be purchased from the market, and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology. The control method is automatic control through a controller. The control circuit of the controller can be implemented through simple programming by technicians in this field, which is common knowledge in this field. In addition, this application is mainly used to protect mechanical devices, so this application no longer explains the control method and circuit connection in detail.

Claims

1. An automatic supply platform for drones, characterized in that: include: Platform body (100) and medicine tank (200); The platform body (100) includes a pedestal (1001), a storage cavity (1014) is provided inside the pedestal (1001), and the storage cavity (1014) is used to store medicine. An arc cover (1002) is installed on the top surface of the pedestal (1001), and a bellows (1008) is connected to the side of the arc cover (1002). A conveying member is provided on the side of the pedestal (1001), and the conveying member conveys the medicine into the bellows (1008). The bellows (1008) is self- A plug is connected to the end, a micro switch (1011) is installed on the outside of the plug, a telescopic member is installed on the back of the arc cover (1002), the telescopic member drives the plug to move horizontally, the top surface of the base (1001) is rotatably connected to a turntable (1004), a driving member is installed inside the base (1001), the driving member drives the turntable (1004) to rotate, a weighing member is installed inside the turntable (1004), and an electromagnetic suction cup (1005) is installed on the top surface of the weighing member; The medicine box (200) includes a box body (2001), a mounting cavity is provided on the side of the box body (2001), a one-way piece is installed inside the mounting cavity, the plug is inserted into the one-way piece, and the medicine flows into the box body (2001), and the one-way piece is used to prevent the medicine in the box body (2001) from flowing back, the top of the arc cover (1002) and the side of the box body (2001) are provided with positioning pieces, and the positioning pieces align the plug and the one-way piece, and the bottom surface of the box body (2001) is connected to a nozzle.

2. The UAV automatic supply platform according to claim 1, characterized in that: The conveying member includes a pump (1015) installed on the side of the base (1001), a first conduit (1016) is connected between the input end of the pump (1015) and the storage chamber (1014), a second conduit (1017) is connected between the output end of the pump (1015) and the bellows (1008), and the free end of the first conduit (1016) is close to the bottom surface of the storage chamber (1014).

3. The UAV automatic supply platform according to claim 2, characterized in that: The storage chamber (1014) is connected to a supply pipe (1018), and the free end of the supply pipe (1018) is connected to a one-way valve (1019). A liquid level sensor is installed inside the storage chamber (1014), and the liquid level sensor is used to monitor the height of the medicine inside the storage chamber (1014).

4. The UAV automatic supply platform according to claim 1, characterized in that: The plug includes a joint (1009) connected to the free end of the bellows (1008), the free end of the joint (1009) is connected to a push rod (1012), the outer side of the push rod (1012) is provided with a plurality of through holes (1013), the one-way member includes a fixed sleeve (2002) installed in the installation cavity, the interior of the fixed sleeve (2002) is provided with a conical hole (2003), a blocking ball (2005) slides in the conical hole (2003), the blocking ball (2005) and the conical hole (2003) are connected. A spring (2004) is connected to one side of the conical hole (2003), the blocking ball (2005) blocks the other side of the conical hole (2003), the push rod (1012) squeezes the blocking ball (2005), and a plurality of interconnected openings (2006) are provided on the side where the conical hole (2003) and the mounting cavity are connected. The spring (2004) is installed on the side with a larger radius of the conical hole (2003), and the blocking ball (2005) blocks the side with a smaller radius of the conical hole (2003).

5. The UAV automatic supply platform according to claim 4, characterized in that: The telescopic member is an electric telescopic rod (1006) installed on the outside of the arc-shaped cover (1002), a connecting strip (1010) is installed on the side of the joint (1009), and the telescopic end of the electric telescopic rod (1006) is connected to the connecting strip (1010).

6. The UAV automatic supply platform according to claim 1, characterized in that: A fixed cavity (1021) is provided inside the pedestal (1001), and the driving member comprises a motor (1023) and a reducer (1024) installed in the fixed cavity (1021). The output end of the motor (1023) is connected to the input end of the reducer (1024), and the output end of the reducer (1024) is connected to a connecting shaft in a transmission manner. A rotating shaft (1025) is rotatably connected between the center of the bottom surface of the turntable (1004) and the center of the top surface of the pedestal (1001), and gears (1026) are installed on the outer sides of the connecting shaft and the rotating shaft (1025), and the gears (1026) are meshed with each other.

7. The UAV automatic supply platform according to claim 6, characterized in that: A heat dissipation groove (1022) connected to the fixing cavity (1021) is provided on the side of the pedestal (1001).

8. The UAV automatic supply platform according to claim 1, characterized in that: The top surface of the turntable (1004) is provided with an open cavity, and the weighing element comprises a weighing disc (1020) suspended in the open cavity and a pressure sensor mounted on the bottom surface of the open cavity, wherein the weighing disc (1020) and the pressure sensor are connected.

9. The UAV automatic supply platform according to claim 1, characterized in that: The positioning member comprises a diffuse reflection infrared receiver (1007) obliquely mounted on the top surface of the arc cover (1002), a reflective plate (2007) mounted on the side of the box (2001), and the micro switch (1011) is mounted on the side of the joint (1009) and abuts against the side of the box (2001).

10. A UAV, as used in the UAV automatic supply platform according to claims 1-9, characterized in that: The invention comprises a plant protection drone (300), wherein the medicine tank (200) is installed on the bottom surface of the plant protection drone (300), the bracket of the plant protection drone (300) is made of magnetic metal, and the plant protection drone (300) is stopped on the top surface of the electromagnetic suction cup (1005), and the bracket of the plant protection drone (300) is adsorbed by the electromagnetic suction cup (1005).

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