Modularized extensible flight accompanying unmanned aerial vehicle structure

Abstract

The utility model discloses a modularized extensible accompanying flight unmanned aerial vehicle structure which comprises a middle-layer support and a lower-layer support, a clamping frame is installed at the bottom of the lower-layer support, flight assemblies are installed on the periphery of the middle-layer support, and bent arms are rotatably installed on the two sides of the bottom of the clamping frame through hinge shafts. The bent arms can apply pressure in the radial direction of the thrown object to the thrown object and are matched with the side wall of the clamping frame to lock and fix the thrown object, and a first limiting locking piece is installed between the end of each bent arm and the clamping frame. Through the design of the connectors and the butt joint rods on the middle-layer support, the unmanned aerial vehicle can easily achieve expansion and replacement of modules among all the supports, new sensors, actuators or other functional modules can be rapidly added, the multifunctionality and application universality of the unmanned aerial vehicle are greatly improved, and the unmanned aerial vehicle is worthy of popularization and application. The modular design not only facilitates maintenance and upgrading, but also reduces the use cost of a user.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicle equipment, in particular to a modular and expandable accompanying flying unmanned aerial vehicle structure. Background Art

[0002] Unmanned aerial vehicles, or "drones" for short, 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 an onboard computer. Drones can be divided into military and civilian applications according to their fields of application. In the military, drones are divided into reconnaissance aircraft and target aircraft. In the civilian field, drones + industry applications are the real rigid demand for drones; their applications in aerial photography, agriculture, plant protection, micro selfies, express delivery, disaster relief, wildlife observation, infectious disease monitoring, surveying and mapping, news reporting, power inspections, disaster relief, film and television shooting, and creating romance have greatly expanded the uses of drones themselves.

[0003] Existing drones often have deficiencies in modular design, intelligence level and environmental perception capabilities. They may be limited by fixed hardware configurations and find it difficult to flexibly respond to diverse mission requirements. At the same time, for small drones, in order to meet the needs of users, they often carry objects on the bottom for high-altitude delivery. However, due to the small size of small drones and limited load capacity, after part of the objects have been delivered, the remaining objects will affect the flight center of gravity of the fuselage, thereby reducing the flight stability of the drone. Utility Model Content

[0004] The purpose of the utility model is to provide a modular and expandable companion flying UAV structure in order to solve the problems mentioned in the above background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a modular expandable flying companion UAV structure, including a middle-layer bracket and a lower-layer bracket, a clamping frame is installed at the bottom of the lower-layer bracket, and a flight component is installed around the middle-layer bracket. Both sides of the bottom of the clamping frame are rotatably installed with curved arms through hinge shafts. The curved arms can apply a radial pressure to the object to be delivered, and cooperate with the side wall of the clamping frame to lock and fix the object to be delivered, and a first limit locking member is installed between the end of each curved arm and the clamping frame, which can be used to control the pressure applied by the curved arm to the object to switch between two states:

[0006] The first state: the object is subjected to the pressure exerted by the curved arm, so that the static friction between the curved arm and the side wall of the clamping frame and the object respectively prevents the object from moving relative to the curved arm and the clamping frame respectively;

[0007] The second state: at least one of the arms does not exert pressure on the object being delivered, and rotates outwards around the axis of the hinge shaft to which it is connected, and also includes:

[0008] Two fixing frames, which are fixedly mounted on the bottom of the lower bracket and connected to two sides of the clamping frame;

[0009] The second limit locking member is installed between the lower bracket and the clamping frame, and is used to control the connection between the lower bracket and the clamping frame to switch between two states:

[0010] First state: the bottom of the lower bracket is connected to the clamping frame;

[0011] The second state: the bottom of the lower bracket is not connected to the clamping frame, and the clamping frame moves downward along the height direction of the fixing frame due to its own gravity.

[0012] As a further solution of the utility model: it also includes:

[0013] Two limit slots are respectively arranged on opposite sides of the two fixing frames;

[0014] Two limiting columns are respectively fixedly mounted on two sides of the clamping frame and connected to the inner wall of the limiting groove;

[0015] Two fixed locking members are respectively installed in the two fixing frames and can lock and limit the limiting columns on the fixing frames that move down to the limit travel.

[0016] As a further solution of the utility model: two slots are provided on the outer side of the limit column, and the fixing locking member includes:

[0017] Two protrusions are respectively slidably mounted in the fixing frame, and opposite sides of the two protrusions penetrate the fixing frame and extend into the limiting groove, the outer side of the protrusion can also be engaged with the slot, and the top of the protrusion is also provided with an inclined surface;

[0018] Two pull rods are respectively fixedly mounted on the sides of the two protrusions that are away from each other and slide through the outside of the fixing frame;

[0019] Two elastic members are respectively sleeved on the outside of the two pull rods, and opposite ends of the two elastic members are respectively fixedly connected to the two protrusions, and the ends of the two elastic members that are far away are both fixedly connected to the inner wall of the fixing frame.

[0020] As a further solution of the utility model: a connector is fixedly installed on the side of the middle bracket, and a power supply slot is opened on the side of the connector;

[0021] The flight assembly includes a movable seat inserted into the side of the power-on slot, a fixed side plate is fixedly installed on one side of the movable seat, a first fixed screw is screwed on the side of the fixed side plate, a rotating seat is rotatably connected to the other side of the movable seat, a machine arm is fixedly connected to the side of the rotating seat, a drive motor is fixedly connected to one side of the machine arm, a propeller is rotatably connected above the drive motor, a placement groove is opened at one end above the middle-level bracket, a flight controller is fixedly installed on the inner side of the placement groove, a navigator is arranged at the other end above the middle-level bracket, a second fixed screw is fixedly screwed on the side of the navigator, an upper docking rod is fixedly connected to the top of the middle-level bracket, a groove is opened at one end below the middle-level bracket, and a lower docking rod is fixedly connected to the other end below the middle-level bracket.

[0022] As a further solution of the utility model: an upper bracket is inserted above the upper docking rod, a micro repeater is fixedly installed on one end of the upper bracket, and a laser radar is fixedly installed on the other end of the upper bracket.

[0023] As a further solution of the utility model: the lower docking rod is plugged into the lower bracket below, an infrared camera is fixedly installed at one end of the lower side of the lower bracket, a power box is fixedly installed on the top of the lower bracket, a charging hole is opened on the side of the power box, and a support column is fixedly installed on the side of the lower bracket.

[0024] As a further solution of the utility model: the movable seat is fixedly connected to the side of the connector through the first fixing screw, the navigator is fixedly screwed to the other end above the middle bracket through the second fixing screw, and one end of the upper docking rod and the lower docking rod are fixedly screwed with hexagonal nuts.

[0025] As a further solution of the utility model: the size of the groove is matched with the size of the power box.

[0026] Compared with the prior art, the beneficial effects of the utility model are:

[0027] 1. In the utility model, after one object has been dropped on the clamping frame, the overall flight stability of the fuselage is achieved by cooperating with the fixing frame and the clamping frame and the second limit locking member, thereby avoiding the problem that the remaining object affects the flight center of gravity of the fuselage and reduces the flight stability of the UAV due to one of the two objects being dropped.

[0028] 2. In the utility model, through the design of the connector and the docking rod on the middle bracket, the UAV can easily realize the expansion and replacement of modules between each bracket. Whether adding new sensors, actuators or other functional modules, it can be completed quickly, which greatly improves the versatility and wide application of the UAV. This modular design is not only convenient for maintenance and upgrading, but also reduces the user's cost of use.

[0029] 3. The infrared camera is combined with an infrared thermal imager to monitor the surrounding environment around the clock and in all directions, detect and lock potential threats in a timely manner, and provide strong protection for the safe flight of the drone. In addition, the combination of lidar and micro repeater further enhances the obstacle avoidance capability and communication stability of the drone, ensuring that it can maintain a stable flight state even in complex and changing environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The overall structural diagram provided for the embodiment of the utility model;

[0031] Figure 2 A bottom-up stereogram of the overall structure (carrying a drop object) provided by an embodiment of the utility model;

[0032] Figure 3 A schematic diagram of the structure of the clamping frame, the bending arm and the fixing frame provided in the embodiment of the utility model;

[0033] Figure 4 The embodiment of the utility model provides Figure 3 A three-dimensional diagram of the structure in which two bending arms are opened and two fixing frames are separated;

[0034] Figure 5 A three-dimensional diagram of the state structure of the integrally separated clamping frame, the bending arm and the fixing frame provided in the embodiment of the utility model;

[0035] Figure 6 A schematic diagram of a longitudinal section of a local structure of a fixing frame provided in an embodiment of the utility model;

[0036] Figure 7 A dynamic schematic diagram of the activities of the clamping frame, the bending arm and the fixing frame provided in the embodiment of the utility model;

[0037] Figure 8 A schematic diagram of the structure of the overall side surface provided by an embodiment of the utility model;

[0038] Fig. 9 A schematic diagram of a state in which one of the movable seats is completely separated provided by an embodiment of the utility model;

[0039] Fig.10 A schematic diagram of the structure of the machine arm provided in an embodiment of the utility model;

[0040] Fig.11 A schematic diagram of the state structure of a partially separated flight controller provided in an embodiment of the utility model.

[0041] In the figure: 1, middle bracket; 2, connector; 3, power supply slot; 4, movable seat; 5, fixed side plate; 6, first fixed screw; 7, rotating seat; 8, machine arm; 9, drive motor; 10, propeller; 11, placement slot; 12, flight controller; 13, navigator; 14, second fixed screw; 15, upper docking rod; 16, groove; 17, lower docking rod; 18, upper bracket; 19, micro repeater; 20, laser radar; 21, lower bracket; 2 2. Infrared camera; 23. Clamping frame; 24. Power box; 25. Charging port; 26. Support column; 27. Bending arm; 28. First limit locking member; 281. First electromagnetic strip; 282. First connecting piece; 29. ​​Second limit locking member; 291. Second electromagnetic strip; 292. Second connecting piece; 30. Fixed frame; 31. Limiting groove; 32. Limiting column; 33. Fixed locking member; 331. Bump; 332. Pull rod; 333. Elastic member. DETAILED DESCRIPTION

[0042] 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.

[0043] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The following is an explanation of the embodiments of the present utility model based on the overall structure of the present utility model.

[0044] Example: Refer to Figures 1 to 11In the embodiment of the utility model, a modular and expandable accompanying UAV structure has the following specification and size parameters:

[0045] Folded (without paddles): length (100-160) mm * width (50-100) mm * height (30-70) mm;

[0046] Unfolded (including propellers): length (210-300) mm * width (320-400) mm * height (40-80) mm;

[0047] Its maximum load-bearing capacity is 300-500 grams, which is the range of its ability to carry items when flying. For short-distance flights, the recommended load is half of the maximum load; for long-distance flights, try not to let the load exceed 1 / 3 of the maximum load to ensure flight safety and effective use of the equipment.

[0048] It includes a middle support 1 and a lower support 21, a clamping frame 23 is installed at the bottom of the lower support 21, and flying components are installed around the middle support 1. Both sides of the bottom of the clamping frame 23 are rotatably installed with bent arms 27 through hinge shafts. The bent arms 27 can apply a radial pressure to the object to be delivered, and cooperate with the side wall of the clamping frame 23 to lock and fix the object to be delivered, and a first limit locking member 28 is installed between the end of each bent arm 27 and the clamping frame 23, which can be used to control the pressure applied by the bent arm 27 to the object to switch between two states:

[0049] First state: the object is subjected to pressure from the curved arm 27, so that the static friction between the curved arm 27 and the side wall of the clamping frame 23 and the object prevents the object from moving relative to the curved arm 27 and the clamping frame 23;

[0050] The second state: at least one curved arm 27 does not apply pressure to the object to be placed, and rotates outward with the axial direction of the hinge shaft connected to it as the center. The first limit locking member 28 includes a first electromagnetic strip 281 fixedly installed on both sides of the bottom of the clamping frame 23 and a first connecting piece 282 fixedly installed on one side of the bottom of the curved arm 27. The first electromagnetic strip 281 can also be connected to the first connecting piece 282. The first electromagnetic strip 281 is electrically connected to the internal power supply and is also controlled by the internal controller to power on / off. The first connecting piece 282 is a metal sheet that can be attracted by a magnet, and the material of the curved arm 27 is a non-metallic material. Therefore, the magnetism of the first electromagnetic strip 281 after power is turned on will not be transmitted to the object to be placed.

[0051] Also includes:

[0052] Two fixing frames 30, which are fixedly mounted on the bottom of the lower bracket 21 and connected to both sides of the clamping frame 23;

[0053] The second limit locking member 29 is installed between the lower bracket 21 and the clamping frame 23. The second limit locking member 29 includes a second electromagnetic strip 291 fixedly installed at the bottom of the lower bracket 21 and a second connecting piece 292 fixedly installed at the top of the clamping frame 23. The second electromagnetic strip 291 can also be connected to the second connecting piece 292. The second electromagnetic strip 291 is electrically connected to the internal power supply and is also controlled by the internal controller to be powered on / off. The second connecting piece 292 is a metal sheet that can be attracted by a magnet, and the side end of the clamping frame 23 used to clamp the object to be placed is also made of non-metallic material. Therefore, the magnetism of the second electromagnetic strip 291 after being powered on will not be transmitted to the object to be placed, and the second limit locking member 29 is used to control the connection between the lower bracket 21 and the clamping frame 23 to switch between two states:

[0054] First state: the bottom of the lower bracket 21 is connected to the clamping frame 23;

[0055] Second state: the bottom of the lower bracket 21 is not connected to the clamping frame 23 , and the clamping frame 23 moves downward along the height direction of the fixing frame 30 due to its own gravity.

[0056] Also includes:

[0057] Two limiting grooves 31 are respectively opened on opposite sides of the two fixing frames 30, and a buffer pad is fixedly installed at the bottom of the inner wall of the limiting groove 31, and the buffer pad is used for buffering and protecting the limiting column 32 after it moves downward;

[0058] Two limiting posts 32, which are respectively fixedly mounted on two sides of the clamping frame 23 and connected to the inner wall of the limiting groove 31;

[0059] The two fixing locking members 33 are respectively installed in the two fixing frames 30 and can lock and limit the limiting columns 32 on the fixing frames 30 that are moved down to the limit travel.

[0060] Two slots are provided on the outer side of the limiting column 32, and the fixing locking member 33 includes:

[0061] Two protrusions 331 are respectively slidably mounted in the fixing frame 30, and opposite sides of the two protrusions 331 penetrate the fixing frame 30 and extend into the limiting groove 31, the outer side of the protrusion 331 can also be engaged with the card slot, and the top of the protrusion 331 is also provided with an inclined surface;

[0062] Two pull rods 332 are respectively fixedly mounted on the sides of the two protrusions 331 away from each other and slide through the outside of the fixing frame 30;

[0063] The two elastic members 333 are respectively sleeved on the outside of the two pull rods 332, and the opposite ends of the two elastic members 333 are respectively fixedly connected to the two protrusions 331, and the ends of the two elastic members 333 that are away from each other are fixedly connected to the inner wall of the fixing frame 30. The elastic members 333 include but are not limited to springs or metal springs.

[0064] The operator can fix the two fixing frames 30 to the bottom of the lower bracket 21 by bolts and energize the second electromagnetic strip 291, so that the second electromagnetic strip 291 is magnetized and adsorbs and fixes the second connecting piece 292. At the same time, the two fixing frames 30 limit the limiting columns 32 on the clamping frame 23 through the limiting grooves 31 thereon, so as to achieve the limitation of the clamping frame 23 that has been adsorbed and fixed.

[0065] When the operator places the object to be dropped on the bottom of the drone and starts the drone, the drone flies to the designated area, and the operator can control the power off of the first electromagnetic strip 281 on the designated side or both sides. After the first electromagnetic strip 281 is powered off and releases the adsorption and fixation of the first connecting piece 282, the object to be dropped will be pressed on the curved arm 27 by its own gravity, and the curved arm 27 will rotate around the axial direction of the hinge shaft, so that the object to be dropped can be separated from the limit mounting and fixation between the clamping frame 23 and the curved arm 27 to complete the high-altitude drop.

[0066] After the delivery is completed, the operator can control the power off of the second electromagnetic strip 291. After the second electromagnetic strip 291 is powered off and the adsorption fixation of the second connecting piece 292 is released, the clamping frame 23 can slide down along the limiting groove 31 through the limiting column 32; at the same time, during the sliding, if the delivery object on one side is not delivered, the clamping frame 23 will tilt and slide down due to the excessive weight on one side; when the clamping frame 23 slides down to the limit stroke, the limiting column 32 moves down and squeezes the protrusions 331 on both sides of the inner wall of the limiting groove 31 away from each other, and the elastic member 333 is contracted by force, and the one side of the clamping frame 23 that has not been delivered will sag due to the excessive weight, while the other side will swing up;

[0067] At the same time, the clamping frame 23 that is sliding down also slides down due to its tilt, causing it to swing due to its inertia after sliding down to the limit stroke; at this time, the limit column 32 reciprocates in the limit groove 31, and when the slot on the limit column 32 follows the rotation and is parallel to the protrusion 331, the protrusion 331 is relieved of the force, and the elastic member 333 stretches and pushes the protrusion 331 to snap into the slot, thereby completing the limitation of the limit column 32 and the clamping frame 23.

[0068] A connector 2 is fixedly installed on the side of the middle bracket 1, and a power supply slot 3 is opened on the side of the connector 2. The flight component includes a movable seat 4 plugged into the side of the power supply slot 3, and the movable seat 4 is plugged into the side of the power supply slot 3. A fixed side plate 5 is fixedly installed on one side of the movable seat 4, and a first fixed screw 6 is screwed on the side of the fixed side plate 5. A rotating seat 7 is rotatably connected to the other side of the movable seat 4, and an organic arm 8 is fixedly connected to the side of the rotating seat 7. A driving motor 9 is fixedly connected to one side of the organic arm 8, and the driving motor 9 is electrically connected to the internal power supply. A propeller is rotatably connected above the driving motor 9. 10. A placement groove 11 is provided at one end above the middle-level bracket 1, and a flight controller 12 is fixedly installed inside the placement groove 11. A controller is also fixedly installed inside the placement groove 11, which are electrically connected to the first electromagnetic strip 281 and the second electromagnetic strip 291 respectively. A navigator 13 is provided at the other end above the middle-level bracket 1, and a second fixing screw 14 is fixedly screwed on the side of the navigator 13. An upper docking rod 15 is fixedly connected to the top of the middle-level bracket 1, a groove 16 is provided at one end below the middle-level bracket 1, and a lower docking rod 17 is fixedly connected to the other end below the middle-level bracket 1.

[0069] The above scheme is adopted: with the middle-layer bracket 1 as the core, the design of the connector 2 and the power slot 3 enables the movable seat 4 to be easily inserted and powered on to provide energy for the propellers 10 of the UAV. The combination of the drive motor 9 and the propeller 10 provides lift and flight power for the UAV. The fixed installation of the flight controller 12 and the navigator 13 ensures the accuracy of the UAV flight control and path planning. The design of the upper docking rod 15 and the lower docking rod 17 provides an interface for the modular expansion of the UAV, thereby enhancing the overall scalability and flexibility.

[0070] An upper bracket 18 is inserted above the upper docking rod 15 , a micro repeater 19 is fixedly installed on one end of the upper bracket 18 , and a laser radar 20 is fixedly installed on the other end of the upper bracket 18 .

[0071] The above solution is adopted: the micro repeater 19 equipped on the upper bracket 18 enhances the communication capability of the UAV and ensures the stability of long-distance signal transmission. The addition of the laser radar 20 improves the obstacle avoidance capability of the UAV, enabling it to fly safely in complex environments. This modular expansion method not only enriches the functions of the UAV, but also improves its ability to adapt to different mission scenarios and enhances its accompanying flight effect.

[0072] The lower docking rod 17 is plugged into the lower bracket 21 at the bottom, an infrared camera 22 is fixedly installed at one end of the lower bracket 21, a power box 24 is fixedly installed on the top of the lower bracket 21, a charging hole 25 is opened on the side of the power box 24, and a support column 26 is fixedly installed on the side of the lower bracket 21.

[0073] The above solution is adopted: the lower bracket 21 is connected through the lower docking rod 17. The infrared camera 22 arranged on the lower bracket 21 has an angle rotation function, which can capture a wider range of environmental information, especially infrared thermal imaging function, and improves the operation ability of the drone at night and in bad weather.

[0074] The movable seat 4 is fixedly connected to the side of the connector 2 through the first fixing screw 6, and the placement groove 11 facilitates the positioning and fixing of the flight controller 12. The navigator 13 is fixedly screwed to the other end above the middle bracket 1 through the second fixing screw 14, and one end of the upper docking rod 15 and the lower docking rod 17 are fixedly screwed with hexagonal nuts.

[0075] The above solution is adopted: the stability of the movable seat 4 is ensured by tightening the first fixing screw 6. The flight controller 12 is positioned and fixed in the placement slot 11 to ensure the accuracy of flight control. The navigator 13 is fixed by the second fixing screw 14 to ensure the accuracy of path planning and achieve its flight stability. The hexagonal nut design of the upper docking rod 15 and the lower docking rod 17 facilitates the disassembly and installation of the module and improves the maintenance efficiency.

[0076] The upper bracket 18 can be easily disassembled and assembled through the upper docking rod 15 .

[0077] The above solution is adopted: through the plug-in connection of the upper docking rod 15, the upper bracket 18 can be easily disassembled and installed. This design not only facilitates users to quickly replace or upgrade upper components according to task requirements, but also reduces maintenance costs and time costs.

[0078] The size of the groove 16 is matched with the size of the power box 24, the infrared camera 22 can be rotated at an angle, and the support column 26 provides a stable supporting force when the drone is not in working state.

[0079] The above solution is adopted: the adaptive design of the groove 16 and the power box 24 ensures the stable installation and efficient use of the power box 24, the angle rotation function of the infrared camera 22 improves the comprehensiveness of environmental perception, and the stable supporting function of the support column 26 when the UAV is not working ensures the safety and reliability of the UAV.

[0080] The working principle of the utility model is: first, the middle bracket 1 serves as the main body of the entire structure, and the connector 2 fixedly installed on its side is used to connect and expand other modules. The power-on slot 3 on the connector 2 allows the movable seat 4 to be inserted and powered on. The movable seat 4 is firmly fixed to the side of the connector 2 through the first fixed screw 6. The other side of the movable seat 4 is rotatably connected to the rotating seat 7, and the rotating seat 7 is fixedly connected to the machine arm 8, which enables the machine arm 8 to rotate at an angle on the side of the movable seat 4 to adapt to different flight or operation requirements. The drive motor 9 fixedly connected to the machine arm 8 drives the propeller 10 to rotate, providing lift and flight power for the UAV. A flight controller 12 is fixed in the placement slot 11 opened at one end above the middle bracket 1, which is responsible for the flight control and navigation of the UAV. The flight controller 12 adopts an open source flight control system, which integrates advanced algorithms, so that the UAV can perform autonomous reconnaissance tasks, can receive images transmitted by the UAV in real time, and realize information sharing. The wrist terminal not only supports the image transmission function, but also has a built-in voice control algorithm, allowing users to directly control the drone through voice commands. This interactive method greatly improves the convenience and flexibility of operation. The navigator 13 at the other end above the middle bracket 1 is fixed by a second fixing screw 14 to provide flight path planning and positioning information. An upper docking rod 15 is also fixedly connected above the middle bracket 1 to connect with the upper bracket 18 to achieve module expansion. A micro repeater 19 and a laser radar 20 are provided on the upper bracket 18, which are used for signal relay and obstacle detection respectively. , improving the communication and obstacle avoidance capabilities of the drone. The groove 16 opened at one end below the middle bracket 1 is compatible with the size of the power box 24 on the lower bracket 21. The power box 24 supplies power to the entire drone system, and the charging port 25 on its side is used for charging. An infrared camera 22 is fixed at one end below the lower bracket 21, which can be rotated to capture images in different directions. The infrared camera 22 is equipped with advanced sensors such as infrared thermal imagers, which automatically detect and lock heat sources. Once an abnormal situation is found, it will immediately alarm, enhancing the drone's environmental perception and safety monitoring level. The realization of these functions not only enriches the application scenarios of drones, but also improves their operating efficiency and accuracy in complex environments. A support column 26 is also fixed on the side of the lower bracket 21 to provide stable support when the drone is not in operation.

[0081] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A modular and expandable flying companion drone structure, comprising a middle support (1) and a lower support (21), wherein a clamping frame (23) is installed at the bottom of the lower support (21), and flying components are installed around the middle support (1), and curved arms (27) are rotatably installed on both sides of the bottom of the clamping frame (23) through a hinge shaft, and the curved arms (27) can apply a pressure along the radial direction of the object to be delivered, and cooperate with the side wall of the clamping frame (23) to lock and fix the object, and a first limit locking member (28) is installed between the end of each curved arm (27) and the clamping frame (23), which can be used to control the pressure applied by the curved arm (27) to the object to be delivered to switch between two states: In the first state, the object is subjected to pressure from the curved arm (27), so that the static friction force generated between the curved arm (27) and the side wall of the clamping frame (23) and the object respectively prevents the object from moving relative to the curved arm (27) and the clamping frame (23); The second state: at least one of the bent arms (27) does not exert pressure on the object to be dropped, and rotates outwardly with the axial direction of the hinge shaft connected to it as the center, characterized in that: Also includes: Two fixing frames (30) are fixedly mounted on the bottom of the lower support (21) and connected to both sides of the clamping frame (23); The second limiting locking member (29) is installed between the lower support (21) and the clamping frame (23) and is used to control the connection between the lower support (21) and the clamping frame (23) to switch between two states: First state: the bottom of the lower support (21) is connected to the clamping frame (23); The second state: the bottom of the lower support (21) is not connected to the clamping frame (23), and the clamping frame (23) moves downward along the height direction of the fixing frame (30) due to its own gravity.

2. A modular and expandable companion UAV structure according to claim 1, characterized in that: Also includes: Two limiting grooves (31) are respectively arranged on opposite sides of the two fixing frames (30); Two limiting columns (32) are respectively fixedly mounted on two sides of the clamping frame (23) and connected to the inner wall of the limiting groove (31); Two fixed locking members (33) are respectively installed in the two fixed frames (30) and are capable of locking and limiting the limiting columns (32) on the fixed frames (30) that are moved down to the limit stroke.

3. The modular and expandable companion UAV structure according to claim 2, characterized in that: The outer side of the limiting column (32) is provided with two slots, and the fixing locking member (33) comprises: Two protrusions (331) are respectively slidably mounted in the fixing frame (30), and opposite sides of the two protrusions (331) penetrate the fixing frame (30) and extend into the limiting groove (31), the outer side of the protrusion (331) can also be engaged with the groove, and the top of the protrusion (331) is also provided with an inclined surface; Two pull rods (332) are respectively fixedly mounted on the sides of the two protrusions (331) that are away from each other and slide through the outside of the fixing frame (30); The two elastic members (333) are respectively sleeved on the outside of the two pull rods (332), and the opposite ends of the two elastic members (333) are respectively fixedly connected to the two protrusions (331), and the ends of the two elastic members (333) that are far away from each other are both fixedly connected to the inner wall of the fixing frame (30).

4. The modular and expandable companion UAV structure according to claim 1, characterized in that: A connector (2) is fixedly mounted on the side of the middle bracket (1), and a power supply slot (3) is provided on the side of the connector (2); The flight assembly comprises a movable seat (4) plugged into the side of the power supply slot (3), a fixed side plate (5) is fixedly installed on one side of the movable seat (4), a first fixed screw (6) is screwed on the side of the fixed side plate (5), a rotating seat (7) is rotatably connected to the other side of the movable seat (4), a machine arm (8) is fixedly connected to the side of the rotating seat (7), a driving motor (9) is fixedly connected to one side of the machine arm (8), a propeller (10) is rotatably connected to the top of the driving motor (9), and the middle bracket ( 1) A placement groove (11) is provided at one end above the middle bracket (1), a flight controller (12) is fixedly installed inside the placement groove (11), a navigator (13) is provided at the other end above the middle bracket (1), a second fixing screw (14) is fixedly screwed to the side of the navigator (13), an upper docking rod (15) is fixedly connected to the top of the middle bracket (1), a groove (16) is provided at one end below the middle bracket (1), and a lower docking rod (17) is fixedly connected to the other end below the middle bracket (1).

5. The modular and expandable companion UAV structure according to claim 4, characterized in that: An upper bracket (18) is inserted above the upper docking rod (15), a micro repeater (19) is fixedly installed on one end above the upper bracket (18), and a laser radar (20) is fixedly installed on the other end above the upper bracket (18).

6. The modular and expandable companion UAV structure according to claim 4, characterized in that: The lower docking rod (17) is plugged into the lower bracket (21) at its lower end, an infrared camera (22) is fixedly mounted at one end of the lower bracket (21), a power supply box (24) is fixedly mounted above the lower bracket (21), a charging hole (25) is provided on the side of the power supply box (24), and a support column (26) is fixedly mounted on the side of the lower bracket (21).

7. The modular and expandable companion UAV structure according to claim 4, characterized in that: The movable seat (4) is fixedly connected to the side of the connector (2) via the first fixing screw (6), the navigator (13) is fixedly screwed to the other end above the middle support (1) via the second fixing screw (14), and one end of the upper docking rod (15) and the lower docking rod (17) are fixedly screwed with a hexagonal nut.

8. The modular and expandable companion UAV structure according to claim 6, characterized in that: The size of the groove (16) is compatible with the size of the power box (24).

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