Portable mooring unmanned aerial vehicle system

Abstract

The utility model relates to a portable mooring unmanned aerial vehicle system, which belongs to the technical field of unmanned aerial vehicles and comprises a foldable unmanned aerial vehicle, folding wings which are rotatably connected are uniformly distributed on the periphery of a fuselage of the foldable unmanned aerial vehicle, and propellers are arranged at the tail ends of the folding wings; in the storage state, the folding wings rotate to cling to the fuselage, and the propellers rotate to cling to the folding wings; the foldable unmanned aerial vehicle further comprises a storage device used for storing the foldable unmanned aerial vehicle, the foldable unmanned aerial vehicle is contained and stored in a shell of the storage device through the lifting device, and the mooring power source is stored in the shell and connected with the foldable unmanned aerial vehicle to supply power. The foldable unmanned aerial vehicle is connected with the mooring power source through the automatic disengaging device. The portable power supply device is portable and easy to store, can continuously supply power, and has an information display function.

Description

Technical Field

[0001] The utility model belongs to the technical field of unmanned aerial vehicles (UAVs), and in particular relates to a portable tethered UAV system. Background Art

[0002] Tethered drones use a lightweight composite cable consisting of a power cord and optical fiber to convert high-voltage AC power from the ground into low-voltage DC power sufficient for extended flight. This enables transmission of power, video, and control signals, significantly increasing the aircraft's operating time and transmission bandwidth. Both wired and wireless control methods enhance control reliability. Compared to traditional multi-rotor drones, tethered drones offer significantly longer flight times, superior anti-interference capabilities, more stable data transmission, and reduced maintenance costs.

[0003] However, traditional tethered drones are large in size and their storage devices are too bulky. They often require vehicles such as cars and ships to ensure that the tethered drone can continue to operate over a larger range. Therefore, a more portable tethered drone and a suitable storage device are urgently needed. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the utility model provides a portable tethered drone system, which is portable, easy to store, can be sustainably powered, and has an information display function.

[0005] A portable tethered drone system comprises a foldable drone (2), wherein a fuselage (210) of the foldable drone (2) is uniformly distributed with rotatably connected foldable wings (22) around its periphery, and propellers are arranged at the ends of the foldable wings (22); in a stowed state, the foldable wings (22) rotate to be in close contact with the fuselage (210), and the propellers rotate to a position in close contact with the foldable wings (22);

[0006] A storage device (1) is used for storing a foldable drone (2). The foldable drone (2) is accommodated and stored in a housing (10) of the storage device (1) via a lifting device. A tethered power supply (4) is stored in the housing (10) and connected to the foldable drone (2) for power supply. The foldable drone (2) is connected to the tethered power supply (4) via an automatic disconnecting device.

[0007] The top of the housing (10) is provided with a top cover (12), the bottom of the housing (10) is provided with a moving wheel (13), and the back of the housing (10) is provided with a telescopic rod (11); the housing (10) is provided with a control panel (3) comprising operation buttons and an information display screen (31).

[0008] The lifting device comprises a scissor arm (17), the top of the scissor arm (17) is connected with a foldable lifting platform (19) for accommodating the foldable unmanned aerial vehicle (2), the bottom of the scissor arm (17) is fixed with the shell (10) through a fixed bottom plate (110), and the lifting of the foldable unmanned aerial vehicle (2) is realized through the extension and retraction of the scissor arm (17).

[0009] The scissor arm (17) is provided with a hydraulic mechanism, and the extension and retraction are driven by the hydraulic mechanism.

[0010] One end of the top of the scissor arm (17) is hinged to one end of the lifting platform (19), the other end of the top of the scissor arm (17) is in contact with the other side of the lifting platform (19) through a roller, the roller is in contact with and rolls on the bottom surface of the lifting platform (19); one end of the bottom of the scissor arm (17) is hinged to one end of the fixed bottom plate (110), the other end of the bottom of the scissor arm (17) is in contact with the other end of the fixed bottom plate (110) through a roller, the roller is in contact with and rolls on the upper surface of the fixed bottom plate (110).

[0011] The lifting platform (19) comprises a fixed table surface matched in size with the shell and triangular platforms (16), a plurality of the triangular platforms (16) are rotationally connected around the fixed table surface, when the foldable unmanned aerial vehicle (2) is in a state of being stored in the shell (10), the triangular platforms (16) have an included angle with the fixed table surface due to the existence of the side wall of the shell (10); when the foldable unmanned aerial vehicle (2) is in a state of being pushed out upward by the lifting device, the triangular platforms (16) are rotated (90)° to be in the same horizontal plane with the fixed table surface, forming a small apron.

[0012] The fuselage (210) is internally provided with a flight control (26), a four-in-one electronic speed controller (28) electrically connected thereto, an on-board computer and a power module (29), the flight control (26) is electrically connected with a control development board (43) in the shell (10); the folding wing (22) is connected with the fuselage (210) through a folding mechanism, the folding mechanism comprises a fixed shaft (24) fixed on the fuselage (210), the folding wing (22) is rotationally connected on the fixed shaft (24); a movable stop lever (25) is slidingly connected on the fuselage (210) and arranged in parallel with the fixed shaft (24); a spring (23) is connected between the fixed shaft (24) and the movable stop lever (25); a plurality of limiting grooves are formed on the folding wing (22) and matched with the movable stop lever (25).

[0013] The top of the fuselage (210) is provided with a GPS (21), the GPS (21) is rotationally arranged on a base (212) through a support rod (211), and the base (212) is fixed on the fuselage (210).

[0014] The tethered power supply (4) comprises a lithium battery for supplying power to the foldable drone (2), an AC / DC conversion module (45), and a cable retracting device (41) for retracting and releasing the cable;

[0015] The cable retracting device (41) comprises two oppositely arranged retracting brackets (410), the two retracting brackets (410) being connected via a reeling roller (412), and rotating wheels (411) fixed at both ends of the reeling roller (412) being rotationally connected to the two retracting brackets (410); the rotating wheel (411) at one end of the reeling roller (412) being connected to the motor I via a gear transmission mechanism, and being coaxially connected with a bidirectional threaded rotating rod (413), the bidirectional threaded rotating rod (413) being rotationally connected to the screw bracket (420), a guide rod being arranged on the screw bracket (420) in parallel with the bidirectional threaded rotating rod (413), a movable slider (417) being threadedly connected to the bidirectional threaded rotating rod (413) and being slidably connected to the guide rod; the movable slider (417) being threadedly connected to the bidirectional threaded rotating rod (413) and being horizontally reciprocating on the guide rod;

[0016] The cable (421) passes through the guide hole (418) at the lower end of the movable slider (417) and is wound around the winding roller (412);

[0017] The housing (10) is provided with a fan (14) for dissipating heat for the tethered power supply (4).

[0018] The automatic disconnecting device (27) is arranged on the power module (29) of the foldable drone (2), and the plug end (422) of the cable is connected to the foldable drone (2) through the automatic disconnecting device (27); the automatic disconnecting device (27) includes a fixed housing (275) fixed to the housing of the power module (29), and the charging port (278) of the power module is located on the baffle (276) of the fixed housing (275); the plug end (422) of the cable is inserted into the charging port (278) of the power module to charge the drone;

[0019] A gear set is provided in the fixed housing (275), comprising three circular gears (272) meshed in sequence. The circular gear (272) located in the middle is a driving wheel driven by a small motor (273). The small motor (273) is electrically connected to the flight control (26) of the foldable UAV (2); the circular gears (272) located at both ends are driven wheels. The driven wheels are coaxially connected to arc gears (271). The two arc gears (271) are sequentially cross-engaged with the bidirectional racks (274) under the drive of the driven wheels; the ends of the bidirectional racks (274) are coaxially connected to push rods (277); a through hole is provided on the baffle (276) corresponding to the push rods (277). The push rods (277) move under the drive of the bidirectional racks (274), thereby pushing the plug end (422) of the cable outward to make it detach from the UAV.

[0020] The beneficial effects of the utility model are:

[0021] (1) The utility model provides a portable tethered drone system with a storage device. It not only integrates a tethered power supply to continuously power the drone, but also greatly reduces space. At the same time, the installation of a telescopic rod and mobile wheels makes it easy to carry to areas with complex terrain, expanding the working range.

[0022] (2) The utility model provides a portable tethered drone system that solves the problem of wire entanglement during the 360-degree rotation and rewinding of the tethered cable on the reel by means of a cable retracting device. Furthermore, the system is provided with a hand crank, which enables both automatic and manual cable retraction modes, thereby increasing safety margins.

[0023] (3) The utility model provides a portable tethered drone system, which is provided with a fan coaxially connected to the winding roller. The fan is driven to rotate while the cable is being retracted and released, thereby automatically cooling the cable.

[0024] (4) The utility model provides a portable tethered drone system, which is provided with a tension sensor. The tension sensor monitors the cable tension in real time. When the set tension value is reached, the flight control controls the automatic disconnection device to disconnect from the cable. At the same time, since the information display screen displays the tension value, it is also possible to manually disconnect in advance with one button when the set tension value has not been reached, so as to avoid the drone losing its safe flight state due to the cable being entangled with trees or buildings.

[0025] (5) The utility model provides a portable tethered drone system that simplifies drone posture control by setting a control panel. The one-button takeoff and landing mode simplifies the complex operation mode of the drone. The information display screen displays the tethered power information and can monitor in real time whether the tethered drone system is working properly.

[0026] This utility model greatly reduces the storage space. It looks like a small suitcase and is easy to carry. It can be quickly moved to a designated area. It can take off and land vertically and hover, and be quickly deployed and withdrawn under complex terrain conditions such as cities and mountainous areas. It not only saves time, but also can expand the working range of tethered drones, improve the working efficiency of tethered drones, and simplify the tethered drone system. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of the portable tethered drone system of this utility model Figure 1 (Storage state);

[0028] Figure 2 Schematic diagram of the portable tethered drone system of this utility model Figure 2 (expanded state);

[0029] Figure 3 Schematic diagram of the portable tethered drone system of this utility model Figure 3 (expanded state);

[0030] Figure 4 This is a schematic diagram of the lifting device of the present invention in the rising and unfolding state;

[0031] Figure 5 This is a schematic diagram of the lifting device of the present invention in a descending and retracted state;

[0032] Figure 6 This is a diagram showing the unfolded state of the foldable drone in the present invention. Figure 1 ;

[0033] Figure 7 This is a diagram showing the unfolded state of the foldable drone in the present invention. Figure 2 ;

[0034] Figure 8 A bottom view of the foldable drone of the present invention in the unfolded state;

[0035] Figure 9 This is a schematic diagram of the foldable drone in the present invention in a collapsed state;

[0036] Figure 10 This is a schematic diagram of the folding state of the folding wings in the present invention;

[0037] Figure 11 This is a schematic diagram of the automatic disconnecting device of the present invention facing the power module;

[0038] Figure 12 This is a schematic diagram of the effect of the automatic disconnecting device in the present invention being connected to the cable side. Figure 1 ;

[0039] Figure 13 This is a schematic diagram of the effect of the automatic disconnecting device in the present invention being connected to the cable side. Figure 2 ;

[0040] Figure 14 This is a schematic diagram of the effect after the automatic disconnecting device in the utility model is connected to the cable;

[0041] Figure 15 Schematic diagram of the tethered power supply in this utility model Figure 1 ;

[0042] Figure 16 Schematic diagram of the tethered power supply in this utility model Figure 2 ;

[0043] Figure 17 is a schematic diagram of the control panel in the present invention;

[0044] in,

[0045] 1-storage device, 10-housing, 11-telescopic rod, 12-top cover, 13-moving wheel, 14-fan, 15-connecting shaft, 16-triangular platform, 17-scissor arm, 18-hydraulic rod, 19-lifting platform, 110-fixed bottom plate;

[0046] 2-Foldable drone, 21-GPS, 211-Support rod, 212-Base, 22-Folding wings, 23-Spring, 24-Fixed axis, 25-Moving lever, 26-Flight control, 27-Automatic release device, 271-Curved gear, 272-Circular gear, 273-Small motor, 274-Bidirectional rack, 275-Fixed housing, 276-Baffle, 277-Push rod, 278-Charging port of power module, 28-Four-in-one ESC, 29-Power module, 210-Fuselage;

[0047] 3-Control panel, 31-Information display screen, 32-Emergency stop button, 33-Disengage button, 34-Power button, 35-Landing button, 36-Takeoff button, 37-Pitch button, 38-Drift button, 39-Hover button;

[0048] 4-tethered power supply, 41-cable retractable device, 410-retractable bracket, 411-rotating wheel, 412-reeling roller, 413-bidirectional threaded rotating rod, 414-gear II, 415-hand crank, 416-gear I, 417-movable slider, 418-guide hole, 419-gear III, 420-screw bracket, 421-cable, 422-cable plug end, 423-gear IV, 42-motor I, 43-control development board, 44-step-down module, 45-AC / DC conversion module, 46-mesh protective cover. DETAILED DESCRIPTION

[0049] In order to better explain the present invention and facilitate understanding, the technical solutions and effects of the present invention are described in detail below with reference to the accompanying drawings through specific implementation methods.

[0050] A portable tethered drone system, combined with Figures 1-17 As shown, it includes a foldable drone 2 and a storage device 1 for storing the drone.

[0051] The storage device 1 significantly reduces space requirements and comprises an external housing 10. The interior of the housing 10 is arranged into three layers: the upper layer is used to house the foldable drone 2, the middle layer is equipped with a lifting device, and the lower layer is used to install the tethered power supply 4. A top cover 12 is provided on the top of the housing 10 to seal the entire housing 10. Four wheels 13 are installed on the bottom of the housing 10 to facilitate the dragging and carrying of the storage device 1. A telescopic rod 11 is installed on the back of the housing 10 for handholding and assisting in the movement of the entire drone system.

[0052] The lifting device includes a scissor arm 17, on which a hydraulic rod 18 is provided. The hydraulic rod 18 is connected to a hydraulic cylinder (not shown in the figure), and the extension and retraction of the scissor arm 17 is achieved through the hydraulic rod 18. The top of the scissor arm 17 is connected to a foldable lifting platform 19, and the foldable lifting platform 19 is used to place the foldable drone 2. The bottom of the scissor arm 17 is connected to a fixed base plate 110, and the fixed base plate 110 is fixed to the shell 10. One end of the top of the scissor arm 17 is hinged to one end of the lifting platform 19, and the other end of the top of the scissor arm 17 is in contact with the other side of the lifting platform 19 through a roller. The roller contacts and rolls with the bottom surface of the lifting platform 19 to move closer to or farther away from the hinged end, thereby achieving the lifting and lowering of the lifting device. One end of the bottom of the scissor arm 17 is hinged to one end of the fixed base 110. The other end of the bottom of the scissor arm 17 contacts the other end of the fixed base 110 via rollers. The rollers contact and roll against the upper surface of the fixed base 110, moving closer to or farther from the hinged end and raising and lowering the scissor arm 17 synchronously with the rollers at the top of the scissor arm 17. When the hydraulic rod 18 extends, the rollers move closer to the hinged end, extending the entire scissor arm 17 and raising its height. This raises the lifting platform 19 to the top of the storage device 1, thereby ejecting the drone. Simultaneously with the drone's ejection, the lifting platform 19 deploys.

[0053] The lifting platform 19 includes a fixed table and a triangular platform 16. The fixed table is rectangular. Four triangular platforms 16 are rotatably connected to the fixed table around the fixed table via connecting shafts 15. When the foldable drone 2 is in a state of being stored inside the shell 10, the triangular platform 16 has an angle with the fixed table due to the existence of the side wall of the shell 10. The multiple triangular platforms 16 and the fixed table wrap the foldable drone 2 in the middle; when the foldable drone 2 is in a state of being pushed upward by the lifting device, the triangular platform 16 breaks away from the obstruction inside the shell 10, rotates 90° and is on the same horizontal plane with the fixed table, thereby increasing the parking area of ​​the drone and forming a small apron for facilitating the take-off and landing of the drone.

[0054] The lifting platform 19 and the fixed base plate 110 are provided with through holes for the cables 421 to pass through, so as to charge the foldable drone 2 .

[0055] The foldable drone 2 includes a fuselage 210, on which four carbon fiber plates are provided for space separation; a flight control 26 and a four-in-one electronic speed controller 28, an onboard computer, and a power supply module 29 are provided inside the fuselage 210, and the flight control 26 is electrically connected to the control development board 43 inside the shell 10, thereby completing actions such as takeoff, landing, hovering, pitching, and offsetting. The above actions are all conventional actions of the drone and will not be repeated here. Four folding wings 22 are evenly distributed around the fuselage 210, and propellers are provided at the ends of the folding wings 22; the folding wings 22 are connected to the fuselage 210 through a folding mechanism. When the foldable drone 2 is in the stowed state, the folding wings 22 are in a folded state, and the folding wings 22 are attached to the fuselage 210; when the foldable drone 2 is in the non-stowed state, the folding wings 22 are in an unfolded state, and the ends of the folding wings 22 are away from the fuselage 210. The folding mechanism includes a fixed shaft 24 fixed to the fuselage 210, with the folding wing 22 rotatably connected to the fixed shaft 24; a movable lever 25 slidably connected to the fuselage 210 and arranged parallel to the fixed shaft 24; a spring 23 is connected between the fixed shaft 24 and the movable lever 25. The ends of the movable lever 25 protrude from the sidewalls of the fuselage 210 for limiting position; the folding wing 22 is provided with a limiting groove that cooperates with the movable lever 25. When the folding wing 22 is in the unfolded state and the folded state, the movable lever 25 cooperates with different limiting grooves to limit the state of the folding wing 22 and prevent displacement. Moving the movable lever 25 along the strip groove provided in the fuselage 210 can disengage the limiting groove of the folding wing 22, thereby achieving the state transition of the folding wing 22.

[0056] A GPS 21 is mounted on the top of the fuselage 210. The GPS 21 is rotated on a base 212 via a support rod 211. The base 212 is fixed to the fuselage 210. The bottom of the support rod 211 is rotatably connected to the base 212 via a connecting shaft.

[0057] The propeller comprises two oppositely arranged blades, and the two blades are respectively rotationally connected to the ends of the folding wing 22. When the foldable unmanned aerial vehicle 2 is in the storage state, the two blades are rotated to be parallel to the folding wing 22 to save space and facilitate storage.

[0058] The control panel 3 is arranged on the shell 10 of the storage device 1, and a plurality of operation buttons and an information display screen 31 are arranged on the control panel 3 and electrically connected to the control development board 43 in the shell 10. The operation buttons are used to adjust the attitude of the foldable unmanned aerial vehicle 2 and display the related parameters of the tethered power supply 4. The operation buttons include an emergency stop button 32, a disengagement button 33, a power button 34, a landing button 35, a take-off button 36, a pitch button 37, a yaw button 38, and a hovering button 39. The emergency stop button 32 is used to stop the flight of the foldable unmanned aerial vehicle 2, the disengagement button 33 is used to separate the cable 421 from the foldable unmanned aerial vehicle 2, the power button 34 is used to start the power supply of the tethered unmanned aerial vehicle system, the landing button 35 is used for one-key landing of the foldable unmanned aerial vehicle 2, the take-off button 36 is used for one-key take-off of the foldable unmanned aerial vehicle 2, the pitch button 37 is used for adjusting the pitch or the yaw of the foldable unmanned aerial vehicle 2, and the pitch button 37 includes two buttons for adjusting the pitch and the yaw, respectively, the yaw button 38 is used for adjusting the left and right positions of the foldable unmanned aerial vehicle 2, and the yaw button 38 includes two buttons for adjusting the left and the right, respectively, and the hovering button 39 is used for adjusting the foldable unmanned aerial vehicle 2 to the hovering state. The remote controller of the ground station is connected to the control development board 43 through wireless communication, and the ground station is connected to the flight control 26 for calibration and channel mapping, so as to adjust the attitude of the foldable unmanned aerial vehicle 2. The information display screen 31 is used to display the voltage, the current, the power, the tension, the temperature, the remaining length of the cable 421, and the remaining power of the tethered power supply 4, and to monitor the information of the tethered power supply 4 in real time.

[0059] The tethered power supply 4 includes a lithium battery, an AC / DC conversion module 45, and a cable retraction device 41. The lithium battery directly powers the foldable drone 2. If the power supply time is long, the ground power supply can be switched. The 220V AC power on the ground is converted into 400V DC power by the AC / DC conversion module 45, and then powers the drone and charges the lithium battery through the step-down module 44. The cable retraction device 41 includes two oppositely arranged retraction brackets 410. The two retraction brackets 410 are connected by a reel-up roller 412. The rotating wheels 411 fixed at both ends of the retraction roller 412 are embedded in the retraction brackets 410 and are rotatably connected to the two retraction brackets 410. A gear I is coaxially arranged on the rotating wheel 411 at one end of the retraction roller 412. Gear I 416 is connected to gear II 414 through a meshing transmission belt. The bidirectional threaded rotating rod 413 is coaxially fixed to gear II 414. The two ends of the bidirectional threaded rotating rod 413 are rotatably connected to the screw bracket 420 via bearings. A guide rod is arranged on the screw bracket 420 parallel to the bidirectional threaded rotating rod 413. The movable slider 417 is threadedly connected to the bidirectional threaded rotating rod 413 and slidably connected to the guide rod. The screw bracket 420 is detachably fixed to the retractable bracket 410. Gear I 416 is coaxially connected to gear IV 423. Gear IV 423 is connected to gear III 419 connected to the output end of motor I 42 via a transmission belt. Motor I 42 drives gear III 419 to rotate, thereby achieving synchronous rotation of gear IV 423 and gear I 416, which in turn drives gear II 414 and the bidirectional threaded rotating rod 413 to rotate. The movable slider 417, through its threaded connection to the bidirectional threaded rotating rod 413, reciprocates horizontally on the guide rod. The cable 421 passes through a guide hole 418 at the lower end of the movable slider 417 and is wound around the winding roller 412. The reciprocating motion of the movable slider 417 on the guide rod ensures that the cable 421 is evenly wound around the winding roller 412. The power module 29 of the foldable drone 2 is provided with an automatic disconnect device 27. The plug end 422 of the cable is connected to the foldable drone 2 through the automatic disconnect device 27 to charge the foldable drone 2. The automatic disconnect device 27 includes a fixed housing 275, which is fixed to the housing of the power module 29. The charging port 278 of the power module is located on the baffle 276 of the fixed housing 275. The plug end 422 of the cable is inserted into the charging port 278 of the power module to charge the drone. A gear set is housed within the fixed housing 275, comprising three meshing circular gears 272. The central circular gear 272 is the driving gear, driven by a small motor 273, which is electrically connected to the flight controller 26. The circular gears 272 at either end are driven gears, coaxially connected to arcuate gears 271. Driven by the driven gears, the two arcuate gears 271 sequentially mesh with bidirectional racks 274. A push rod 277 is coaxially connected to the distal end of the bidirectional rack 274.The baffle 276 is provided with a through hole corresponding to the push rod 277 . The push rod 277 moves under the drive of the bidirectional rack 274 , thereby pushing the plug end 422 of the cable outward to separate it from the drone.

[0060] When the cable becomes entangled with an obstacle, the tension sensor reaches the set value, preventing the drone from losing control. Flight control 26 issues a command to automatic disengagement device 27, activating small motor 273. Through the meshing transmission of the gear train and rack and pinion, this drives push rod 277 to reciprocate, thereby pushing the plug end 422 of the cable outward, causing it to automatically disengage. Furthermore, the tension of cable 421, as indicated by the tension sensor, is simultaneously displayed on information display 31. To prevent the drone from losing control due to cable 421 becoming entangled with an obstacle, automatic disengagement device 27 can be activated using disengagement button 33 on control panel 3, sending a command to flight control 26 in advance to disengage cable 421 before the tension reaches the upper limit.

[0061] The storage device 1 is provided with a socket connected to a ground power source, so that the lithium battery in the storage device 1 can be charged, and the foldable drone 2 can also be directly powered via the cable 421 .

[0062] A fan 14 is mounted on the exterior of the housing 10 of the storage device 1 and is coaxially connected to the take-up roller 412. This rotates the fan 14 while the cable is being reeled in and out, automatically cooling the tethered power supply 4. A mesh protective cover 46 is mounted on the exterior of the fan 14. A hand crank 415 is coaxially connected to the fan 14. This also rotates the fan 14 when manually reeling in and out the cable 421, cooling the cable 421 and preventing it from overheating and burning.

Claims

1. A portable tethered drone system, characterized by: The invention comprises a foldable drone (2), wherein a fuselage (210) of the foldable drone (2) is uniformly distributed with rotatably connected folding wings (22) around its periphery, and propellers are arranged at the ends of the folding wings (22); in a stowed state, the folding wings (22) rotate to be closely attached to the fuselage (210), and the propellers rotate to a position closely attached to the folding wings (22); A storage device (1) is used for storing a foldable drone (2). The foldable drone (2) is accommodated and stored in a housing (10) of the storage device (1) via a lifting device. A tethered power supply (4) is stored in the housing (10) and connected to the foldable drone (2) for power supply. The foldable drone (2) is connected to the tethered power supply (4) via an automatic disconnecting device.

2. The portable tethered drone system according to claim 1, characterized in that: The top of the housing (10) is provided with a top cover (12), the bottom of the housing (10) is provided with a moving wheel (13), and the back of the housing (10) is provided with a telescopic rod (11); the housing (10) is provided with a control panel (3) comprising operation buttons and an information display screen (31).

3. The portable tethered drone system according to claim 1, characterized in that: The lifting device comprises a scissor arm (17), the top of the scissor arm (17) is connected to a foldable lifting platform (19) for accommodating a foldable drone (2); the bottom of the scissor arm (17) is fixed to a housing (10) via a fixed base plate (110); and the lifting and lowering of the foldable drone (2) is achieved by extending and retracting the scissor arm (17).

4. The portable tethered drone system according to claim 3, characterized in that: The scissor arms (17) are provided with a hydraulic mechanism, which is driven to extend and retract by hydraulic pressure.

5. The portable tethered drone system according to claim 4, characterized in that: One end of the top of the scissor arm (17) is hinged to one end of the lifting platform (19), and the other end of the top of the scissor arm (17) contacts the other side of the lifting platform (19) through a roller, and the roller contacts and rolls on the bottom surface of the lifting platform (19); one end of the bottom of the scissor arm (17) is hinged to one end of the fixed base plate (110), and the other end of the bottom of the scissor arm (17) contacts the other end of the fixed base plate (110) through a roller, and the roller contacts and rolls on the upper surface of the fixed base plate (110).

6. The portable tethered drone system according to claim 3, characterized in that: The lifting platform (19) includes a fixed table and a triangular platform (16) adapted to the size of the shell. A plurality of triangular platforms (16) are rotatably connected around the fixed table. When the foldable drone (2) is in a state of being stored inside the shell (10), the triangular platform (16) has an angle with the fixed table due to the presence of the side wall of the shell (10); when the foldable drone (2) is in a state of being pushed upward by the lifting device, the triangular platform (16) rotates (90) degrees and is on the same horizontal plane with the fixed table, forming a small apron.

7. The portable tethered drone system according to claim 1, characterized in that: The fuselage (210) is provided with a flight control (26) and a four-in-one electric regulator (28) electrically connected thereto, an onboard computer and a power module (29); the flight control (26) is electrically connected to a control development board (43) inside the housing (10); the folding wing (22) is connected to the fuselage (210) through a folding mechanism, the folding mechanism comprising a fixed shaft (24) fixed on the fuselage (210), and the folding wing (22) is rotatably connected to the fixed shaft (24); a movable lever (25) is slidably connected to the fuselage (210) and arranged parallel to the fixed shaft (24); a spring (23) is connected between the fixed shaft (24) and the movable lever (25); and a plurality of limit slots matching the movable lever (25) are provided on the folding wing (22).

8. The portable tethered drone system according to claim 1, characterized in that: A GPS (21) is installed on the top of the fuselage (210). The GPS (21) is rotated on a base (212) via a support rod (211). The base (212) is fixed on the fuselage (210).

9. The portable tethered drone system according to claim 1, characterized in that: The tethered power supply (4) comprises a lithium battery for supplying power to the foldable drone (2), an AC / DC conversion module (45), and a cable retracting device (41) for retracting and releasing the cable; The cable retracting device (41) comprises two oppositely arranged retracting brackets (410), the two retracting brackets (410) being connected via a reeling roller (412), and rotating wheels (411) fixed at both ends of the reeling roller (412) being rotationally connected to the two retracting brackets (410); the rotating wheel (411) at one end of the reeling roller (412) being connected to the motor I via a gear transmission mechanism, and being coaxially connected with a bidirectional threaded rotating rod (413), the bidirectional threaded rotating rod (413) being rotationally connected to the screw bracket (420), a guide rod being arranged on the screw bracket (420) in parallel with the bidirectional threaded rotating rod (413), a movable slider (417) being threadedly connected to the bidirectional threaded rotating rod (413) and being slidably connected to the guide rod; the movable slider (417) being threadedly connected to the bidirectional threaded rotating rod (413) and being horizontally reciprocating on the guide rod; The cable (421) passes through the guide hole (418) at the lower end of the movable slider (417) and is wound around the winding roller (412); The housing (10) is provided with a fan (14) for dissipating heat for the tethered power supply (4).

10. The portable tethered drone system according to claim 1, characterized in that: The automatic disconnecting device (27) is arranged on the power module (29) of the foldable drone (2), and the plug end (422) of the cable is connected to the foldable drone (2) through the automatic disconnecting device (27); the automatic disconnecting device (27) includes a fixed housing (275) fixed to the housing of the power module (29), and the charging port (278) of the power module is located on the baffle (276) of the fixed housing (275); the plug end (422) of the cable is inserted into the charging port (278) of the power module to charge the drone; A gear set is provided in the fixed housing (275), comprising three circular gears (272) meshed in sequence. The circular gear (272) located in the middle is a driving wheel driven by a small motor (273). The small motor (273) is electrically connected to the flight control (26) of the foldable UAV (2); the circular gears (272) located at both ends are driven wheels. The driven wheels are coaxially connected to arc gears (271). The two arc gears (271) are sequentially cross-engaged with the bidirectional racks (274) under the drive of the driven wheels; the ends of the bidirectional racks (274) are coaxially connected to push rods (277); a through hole is provided on the baffle (276) corresponding to the push rods (277). The push rods (277) move under the drive of the bidirectional racks (274), thereby pushing the plug end (422) of the cable outward to make it detach from the UAV.

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