Parabolic release device for unmanned aerial vehicle

Abstract

The invention provides a throwing and releasing device for an unmanned aerial vehicle, and relates to the technical field of unmanned aerial vehicle throwing, the throwing and releasing device comprises an unmanned aerial vehicle main body, a bearing frame is mounted on the unmanned aerial vehicle main body, a storage cylinder is fixedly mounted on the bearing frame, a spiral feeding rod is rotatably mounted in the storage cylinder, and a bracket is fixedly mounted at the bottom end of the storage cylinder; a bracket is fixedly mounted on the bearing frame, acceleration wheels are symmetrically and rotatably mounted on the bracket, a first servo motor is fixedly mounted on the bracket, a gear set is mounted between the first servo motor and the acceleration wheels, a rotary encoder is fixedly mounted on the bearing frame, and fan blades are mounted on an input shaft of the rotary encoder; in the process that the unmanned aerial vehicle body flies forwards, the acceleration wheels give opposite accelerations to the materials at the same flying speed, the acceleration wheels and the acceleration wheels counteract each other, the movement speed relative to the ground is close to zero, under the action of gravity, the materials can fall on the position where the materials need to be put, and the effect of improving the dynamic putting precision of the unmanned aerial vehicle is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of unmanned aerial vehicle (UAV) delivery, and more specifically, particularly relates to a parabolic release device for UAV. Background Art

[0002] In the field of drone applications, especially when performing tasks such as material delivery and fire-extinguishing bomb placement, it is crucial to be able to release parabolic objects accurately and reliably. In practical applications, a parabolic release device for drones usually requires the following technologies:

[0003] 1. Loading and fixing technology: Use specially designed load-bearing structures, such as hanging baskets and clamps, to achieve stable loading and firm fixing of the thrown objects;

[0004] 2. Release control technology: With the help of electronic control systems, mechanical transmission devices, etc., the release time and method of the object can be accurately controlled;

[0005] 3. Buffering and guiding technology: Use buffer pads, guide rails and other components to ensure the safety and accuracy of the thrown objects during the release process.

[0006] When the existing release device is performing dynamic delivery, due to the high speed of the drone, the delivered material has a forward inertia, making it difficult to accurately deliver it to the required location.

[0007] The existing release device is fixed by a clamp or the like, and each object to be released needs to be clamped by a separate clamp. The clamp itself takes up space, resulting in a significant reduction in available space, making it difficult to load more supplies.

[0008] With the existing release device, as the materials are released, the internal materials gradually decrease, which is prone to uneven weight distribution, causing the center of gravity of the drone to shift, which is not conducive to the stable flight of the drone. Summary of the invention

[0009] In order to solve the above technical problems, the present invention provides a parabolic release device for a drone to solve the above problems.

[0010] A parabolic release device for a drone comprises a drone body, a carrier frame is mounted on the drone body, a storage barrel is fixedly mounted on the carrier frame, a spiral feeding rod is rotatably mounted inside the storage barrel, a bracket is fixedly mounted on the bottom end of the storage barrel, an acceleration wheel is symmetrically rotatably mounted on the bracket, a first servo motor is fixedly mounted on the bracket, a gear set is mounted between the first servo motor and the acceleration wheel, a second servo motor is fixedly mounted on the carrier frame, a first synchronous pulley set is mounted between the output shaft of the second servo motor and the spiral feeding rod, a rotary encoder is fixedly mounted on the carrier frame, and a fan blade is mounted on the input shaft of the rotary encoder.

[0011] Preferably, lead screws are rotatably installed symmetrically on the carrier frame, and a second synchronous pulley set is installed between the lead screws and the output shaft of the second servo motor.

[0012] Preferably, counterweight blocks are arranged on the two lead screws.

[0013] Preferably, threaded sleeves are fixedly installed symmetrically at both ends of the counterweight block, and the two threaded sleeves are respectively threadedly connected to the two lead screws.

[0014] Preferably, a first end face bevel gear is fixedly installed on the spiral feeding rod.

[0015] Preferably, a feeding tray is rotatably installed on the spiral feeding rod, and a second end face bevel gear is slidably installed on the feeding tray.

[0016] Preferably, a spring is installed between the second end face bevel gear and the feeding tray.

[0017] Preferably, a feeding rod is fixedly installed on the second end face bevel gear.

[0018] Preferably, a threaded post is slidably installed on the feeding rod.

[0019] Preferably, a transparent panel is fixedly installed on the storage cylinder, and a diversion cover is fixedly installed on the storage cylinder.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] In the present invention, materials (fire extinguishing bombs) are put into the storage cylinder through the opening at the top of the storage cylinder. After one is placed, the threaded post is pulled counterclockwise. The threaded post will pull the second end face bevel gear to rotate through the feeding rod. The second end face bevel gear will drive the spiral feeding rod to rotate counterclockwise through meshing with the first end face bevel gear. The spiral feeding rod will push the materials towards the discharging end of the storage cylinder, and the materials are put into the storage cylinder in sequence. The internal loading condition of the storage cylinder can be seen through the transparent panel, achieving the effect of facilitating the orderly placement of materials.

[0022] In the present invention, after the UAV body takes off, the fan blades will be blown by the wind, and the fan blades will drive the input shaft of the second servo motor to rotate. The flight control system inside the UAV body will start the first servo motor synchronously according to the rotation speed of the input shaft of the second servo motor, the wind speed and the moving speed of the UAV, so that the first servo motor drives the acceleration wheel to rotate at the same speed through the gear set. When moving to the position where the material needs to be dropped, the second servo motor starts to drive the spiral feeding rod to rotate counterclockwise through the first synchronous pulley set. The counterclockwise rotation of the spiral feeding rod will push the material to move inside the storage cylinder, so that the material is discharged from the bottom outlet of the storage cylinder. After the material comes out of the storage cylinder, it will fall on the bracket. At this time, the acceleration wheels rotating relatively at both ends will throw the material. During the forward flight of the UAV body, the acceleration wheels give the material an opposite acceleration at the same speed as the flight, and the two cancel each other out, and the moving speed relative to the ground is close to zero. Under the action of gravity, the material will fall on the position where it needs to be dropped, achieving the effect of improving the dynamic dropping accuracy of the UAV.

[0023] In the present invention, while the second servo motor drives the spiral feeding rod to rotate counterclockwise for material dropping, the output shaft of the second servo motor will also drive two lead screws to rotate counterclockwise synchronously through the second synchronous pulley set. Since the two threaded sleeves are respectively threadedly connected to the two lead screws, the counterweight will be driven to move from the back to the front through the threaded sleeves, that is, the material moves from the front to the back, and the center of gravity gradually shifts backward. During this process, the counterweight will move from the back to the front synchronously, which can keep the center of gravity unchanged, achieving the effect of being beneficial to the stable flight of the UAV.

[0024] In the present invention, during this process, the first end face bevel gear will generate a thrust on the second end face bevel gear through the inclined plane, prompting the second end face bevel gear to slide upward to the feeding tray against the elastic force of the spring. The second end face bevel gear cannot drive the first end face bevel gear to rotate, that is, when the threaded column is pulled counterclockwise, it can drive the spiral feeding rod to rotate counterclockwise, and when the threaded column is pushed clockwise, it cannot drive the spiral feeding rod to rotate. After all the materials are placed, align the threaded column with the threaded hole on the side of the storage cylinder and then tighten it. During the tightening process of the threaded column, it will pull the second end face bevel gear to slide upward to the feeding tray against the elastic force of the spring through the feeding rod, so that the second end face bevel gear disengages from the engagement with the first end face bevel gear. This can not only play a role in facilitating the orderly placement of materials, but also when not taking off, the threaded column is not connected to the storage cylinder, and the feeding rod can also limit the rotation of the storage cylinder to prevent the storage cylinder from rotating by mistake and discharging the materials.

[0025] In the present invention, a storage cylinder provides a larger storage space for materials. While the spiral feeding rod orderly delivers the materials, it can also limit the materials to prevent them from shaking randomly inside the storage cylinder (when the UAV body turns or suddenly stops, the materials will shake due to inertia, affecting the dynamic balance of the UAV body flight), and prevent explosive items such as fire extinguishing bombs from exploding due to collisions, achieving the effects of providing a larger load-bearing space and higher stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 is a schematic diagram of the structure of the carrier frame of the present invention;

[0028] Figure 3 is a schematic cross-sectional structure diagram of the present invention;

[0029] Figure 4 is a schematic diagram of the structure of the bracket of the present invention;

[0030] Figure 5 is a schematic diagram of the structure of the rotary encoder of the present invention;

[0031] Figure 6 is a schematic diagram of the structure of the counterweight of the present invention;

[0032] Figure 7 is a schematic diagram of the structure of the feeding tray of the present invention;

[0033] Figure 8 is a schematic cross-sectional structure diagram of the end face helical gear of the present invention;

[0034] Figure 9 is of the present invention Figure 5 enlarged schematic diagram of part A.

[0035] In the figure, the corresponding relationship between the component names and the drawing reference numbers is as follows: 1, UAV body; 2, carrier frame; 3, storage cylinder; 4, spiral feeding rod; 5, bracket; 6, acceleration wheel; 7, first servo motor; 8, gear set; 9, second servo motor; 11, first synchronous pulley set; 12, rotary encoder; 13, fan blade; 14, lead screw; 15, second synchronous pulley set; 16, counterweight; 17, threaded sleeve; 18, first end face helical gear; 19, feeding tray; 21, second end face helical gear; 22, spring; 23, feeding rod; 24, threaded post; 25, transparent panel; 26, air deflector. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] The following further describes in detail the embodiments of the present invention in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0037] Please refer to Figures 1 - 9 , the present invention provides a parabolic release device for an unmanned aerial vehicle, including an unmanned aerial vehicle main body 1, a carrier 2 is installed on the unmanned aerial vehicle main body 1, a storage cylinder 3 is fixedly installed on the carrier 2, a spiral feeding rod 4 is rotatably installed inside the storage cylinder 3, a bracket 5 is fixedly installed at the bottom end of the storage cylinder 3, accelerating wheels 6 are symmetrically rotatably installed on the bracket 5, a first servo motor 7 is fixedly installed on the bracket 5, and a gear set 8 is installed between the first servo motor 7 and the accelerating wheels 6, and a second servo motor 9 is fixedly installed on the carrier 2.

[0038] A first synchronous pulley set 11 is installed between the output shaft of the second servo motor 9 and the spiral feeding rod 4, a rotary encoder 12 is fixedly installed on the carrier 2, a fan blade 13 is installed on the input shaft of the rotary encoder 12, lead screws 14 are symmetrically rotatably installed on the carrier 2, and a second synchronous pulley set 15 is installed between the lead screws 14 and the output shaft of the second servo motor 9, counterweights 16 are arranged on the two lead screws 14, threaded sleeves 17 are symmetrically fixedly installed at both ends of the counterweights 16, and the two threaded sleeves 17 are respectively threadedly connected to the two lead screws 14.

[0039] A first end face bevel gear 18 is fixedly installed on the spiral feeding rod 4, a feeding tray 19 is rotatably installed on the spiral feeding rod 4, a second end face bevel gear 21 is slidably installed on the feeding tray 19, a spring 22 is installed between the second end face bevel gear 21 and the feeding tray 19, a feeding rod 23 is fixedly installed on the second end face bevel gear 21, a threaded post 24 is slidably installed on the feeding rod 23, a transparent panel 25 is fixedly installed on the storage cylinder 3, and a flow guide cover 26 is fixedly installed on the storage cylinder 3.

[0040] Unmanned aerial vehicle main body 1: It is the mounting foundation of the entire parabolic release device, provides an installation place for the carrier 2 and other components, supplies power and control signals to the first servo motor 7, the second servo motor 9 and the rotary encoder 12, and coordinates the overall operation through the flight control system to realize the flight and parabolic operation of the unmanned aerial vehicle;

[0041] Carrier 2: Installed on the unmanned aerial vehicle main body 1, used to fix the storage cylinder 3, the first servo motor 7, the second servo motor 9, the rotary encoder 12, rotatably installs the lead screws 14, connects and supports each component, and ensures the stable position of each component during the flight of the unmanned aerial vehicle;

[0042] Storage cylinder 3: Fixed on the carrier 2, provides a storage space for materials, rotatably installs a spiral feeding rod 4 inside, is connected to the bracket 5 at the bottom end, facilitates the discharge of materials from the bottom outlet, and can view the internal loading situation in cooperation with the transparent panel 25;

[0043] The spiral feeding rod 4 rotates in the storage tube 3, is fixed to the first end bevel gear 18, is driven by the second end bevel gear 21 to rotate counterclockwise, and is driven by the second servo motor 9 to push the materials to move to the discharge end to achieve orderly transportation, and at the same time limit the materials to prevent them from shaking in the storage tube 3 and affecting the flight of the drone, and prevent the explosives from bumping and exploding;

[0044] Bracket 5: fixed at the bottom end of the storage tube 3, receiving the materials discharged from the storage tube 3, providing a mounting position for the acceleration wheel 6 and the first servo motor 7, so that the acceleration wheel 6 can exert force on the materials and throw them out;

[0045] Acceleration wheel 6: Rotates symmetrically with the bracket 5, and rotates relatively under the drive of the first servo motor 7 through the gear set 8 ( Figure 3 When the materials fall on bracket 5, the materials and the UAV are accelerated in the opposite direction to offset the flight speed, so that the speed of the materials relative to the ground is close to zero, and the materials fall accurately at the delivery point by gravity, thereby improving the delivery accuracy;

[0046] The first servo motor 7 is fixed on the bracket 5 and is the power source of the acceleration wheel 6. The power is transmitted through the gear set 8 to make the acceleration wheel 6 rotate at a speed suitable for the flight of the UAV, so as to achieve accurate throwing of materials.

[0047] Gear set 8: transmits power and changes speed between the first servo motor 7 and the acceleration wheel 6, causing the two acceleration wheels 6 to rotate relative to each other, adjusting the speed and torque output by the first servo motor 7 to meet the requirements of the acceleration wheel 6 to drive the materials, and ensuring that the materials are accurately thrown out;

[0048] The second servo motor 9 is fixed on the carrier 2. On the one hand, it drives the spiral feeding rod 4 to rotate and release materials through the first synchronous pulley group 11. On the other hand, it drives the screw rod 14 to rotate through the second synchronous pulley group 15, driving the counterweight block 16 to move, so as to maintain the stability of the center of gravity of the UAV during flight;

[0049] The first synchronous pulley set 11: transmits the power of the second servo motor 9 between the output shaft of the second servo motor 9 and the spiral feeding rod 4, ensuring that it effectively drives the spiral feeding rod 4 to rotate counterclockwise to complete the material delivery;

[0050] Rotary encoder 12: fixed on the carrier 2, with fan blades 13 installed on the input shaft. The fan blades 13 are driven by the wind to rotate the shaft, measure the rotation speed, and provide data for the UAV flight control system to help it synchronously control the first servo motor 7 according to relevant parameters, ensure that the acceleration wheel 6 matches the flight parameters, and improve the delivery accuracy;

[0051] The fan blade 13 is installed on the input shaft of the rotary encoder 12. When the drone is flying, it is blown by the wind, driving the rotary encoder 12 shaft to rotate, so that the rotary encoder 12 can measure wind speed related parameters, and provide support for the flight control system to control the first servo motor 7 and the acceleration wheel 6;

[0052] Lead screw 14: Symmetrically and rotatably installed on the carrier 2, connected to the output shaft of the second servo motor 9 via the second synchronous pulley set 15, driven to rotate counterclockwise under its drive, and through threaded connection with the threaded sleeve 17, drive the counterweight 16 to move from back to front, balance the change of the center of gravity when the drone drops supplies, and ensure stable flight;

[0053] Second synchronous pulley set 15: Between the lead screw 14 and the output shaft of the second servo motor 9, transfer the power of the second servo motor 9, ensure its synchronous drive of the two lead screws 14 to rotate counterclockwise, and drive the counterweight 16 to move;

[0054] Counterweight 16: Installed on the two lead screws 14, both ends are threadedly connected to the lead screw 14 via the threaded sleeve 17. When the lead screw 14 rotates, it moves from back to front, balance the backward shift of the center of gravity of the drone caused by the movement of the supplies, keep the center of gravity stable during flight and dropping, and facilitate the stable flight of the drone;

[0055] Threaded sleeve 17: Fixedly installed at both ends of the counterweight 16, respectively threadedly connected to the two lead screws 14. When the lead screw 14 rotates, drive the counterweight 16 to move along the lead screw 14 to adjust its position to balance the center of gravity of the drone;

[0056] First end face bevel gear 18: Fixed on the spiral feeding rod 4, meshed with the second end face bevel gear 21. When the second end face bevel gear 21 rotates, drive the spiral feeding rod 4 to rotate counterclockwise to push the supplies. When the threaded column 24 pushes clockwise, its inclined surface pushes the second end face bevel gear 21 to slide upward on the feeding tray 19 against the elastic force of the spring 22, so that the second end face bevel gear 21 cannot drive it to rotate, unidirectionally control the rotation of the spiral feeding rod 4, and facilitate the orderly feeding of the supplies;

[0057] Feeding tray 19: Rotatably installed on the spiral feeding rod 4, provide a sliding track for the second end face bevel gear 21, connected to the second end face bevel gear 21 via the spring 22. Under the thrust of the first end face bevel gear 18, the second end face bevel gear 21 can slide along it, realize meshing and disengaging with the first end face bevel gear 18, control the rotation of the spiral feeding rod 4, facilitate the feeding of the supplies and prevent misoperation;

[0058] Second end face bevel gear 21: Slideably installed on the feeding tray 19, meshed with the first end face bevel gear 18. When the threaded column 24 pulls counterclockwise, drive the spiral feeding rod 4 to rotate counterclockwise to convey the supplies. When pushing clockwise, under the thrust of the first end face bevel gear 18, overcome the elastic force of the spring 22 and slide upward on the feeding tray 19 to disengage from the meshing, prevent the spiral feeding rod 4 from rotating by mistake, and ensure the orderly feeding and storage of the supplies;

[0059] Spring 22: Between the second end face bevel gear 21 and the feeding tray 19, provide elastic force for the second end face bevel gear 21, so that it remains meshed when there is no thrust from the first end face bevel gear 18, facilitate the threaded column 24 to control the rotation of the spiral feeding rod 4, and be compressed when receiving thrust, so that the second end face bevel gear 21 slides upward on the feeding tray 19 to disengage from the meshing;

[0060] Feeding rod 23: fixed on the second end bevel gear 21, the other end is slidably connected with the threaded column 24, when the threaded column 24 is pulled or pushed, the second end bevel gear 21 is driven to rotate or slide, and the spiral feeding rod 4 is controlled to rotate, so that the materials are put in in an orderly manner. When the threaded column 24 is tightened, the second end bevel gear 21 is disengaged;

[0061] Threaded column 24: The loading rod 23 can slide and rotate. By pulling counterclockwise or pushing clockwise, the loading rod 23 and the second end bevel gear 21 are driven to move, and the spiral feeding rod 4 is controlled to rotate, and materials are put in order. After the materials are put in, they are aligned with the threaded hole on the side end of the storage tube 3 and tightened to disengage the second end bevel gear 21, so that the second servo motor 9 can smoothly drive the spiral feeding rod 4 to rotate;

[0062] Transparent panel 25: fixed on the storage tube 3, so that the operator can observe the material transportation in the pole and understand the working status of the device;

[0063] The deflector 26 is a side end of the storage tube 3, which reduces the resistance of the UAV main body during flight.

[0064] Working principle:

[0065] The first step is to connect the first servo motor 7, the second servo motor 9 and the rotary encoder 12 to the flight control channel of the drone body 1 through wires. When using, put the rescue materials (insulating blankets, compressed biscuits, tablets, etc.) into a cylindrical container (container such as Figure 2 As shown, hereinafter collectively referred to as supplies), then put the supplies (fire extinguishing bombs) into the opening at the top of the storage tube 3, and after placing one, pull the threaded column 24 counterclockwise ( Figure 6 The screw post 24 will pull the second end bevel gear 21 to rotate through the loading rod 23, and the second end bevel gear 21 will mesh with the first end bevel gear 18 to cause the spiral feeding rod 4 to rotate counterclockwise, and the spiral feeding rod 4 will push the materials to move to the discharge end of the storage tube 3. When the screw post 24 pulls the loading rod 23 to move to the limit position, and then pushes the screw post 24 clockwise, the screw post 24 can drive the second end bevel gear 21 to reset through the loading rod 23. In this process, the first end bevel gear 18 will The inclined surface generates a thrust on the second end bevel gear 21, so that the second end bevel gear 21 overcomes the elastic force of the spring 22 and slides upward to the material tray 19, and the second end bevel gear 21 cannot drive the first end bevel gear 18 to rotate, that is, when the threaded column 24 is pulled counterclockwise, the storage barrel 3 can be driven to rotate counterclockwise, and when the threaded column 24 is pushed clockwise, it cannot drive the spiral feeding rod 4 to rotate, and the materials are put into the storage barrel 3 in turn. The internal loading status of the storage barrel 3 can be seen through the transparent panel 25, thereby achieving the effect of facilitating the orderly placement of materials.

[0066] In the second step, after all the supplies are placed, align the threaded column 24 with the threaded hole on the side end of the storage cylinder 3 and then tighten it. During the tightening process of the threaded column 24, it will pull the second end face helical gear 21 upward along the feeding rod 23 to slide on the feeding tray 19 against the elastic force of the spring 22, so that the second end face helical gear 21 disengages from the engagement with the first end face helical gear 18. After the UAV main body 1 takes off, the fan blades 13 will be blown by the wind, and the fan blades 13 will drive the input shaft of the second servo motor 9 to rotate. The flight control system inside the UAV main body 1 will, according to the rotation speed of the input shaft of the second servo motor 9, the wind speed and the moving speed of the UAV, and synchronously start the first servo motor 7, so that the first servo motor 7 drives the acceleration wheel 6 to rotate at the same speed through the gear set 8. When moving to the position where the supplies need to be dropped, the second servo motor 9 is started to drive the spiral feeding rod 4 to rotate counterclockwise through the first synchronous pulley set 11. The spiral feeding rod 4 rotating counterclockwise will push the supplies to move inside the storage cylinder 3, so that the supplies are discharged from the bottom outlet of the storage cylinder 3. After the supplies come out of the storage cylinder 3, they will fall on the bracket 5. At this time, the acceleration wheels 6 rotating relatively at both ends ( Figure 3 Viewpoint, clockwise on the left and counterclockwise on the right) will throw the supplies. During the forward flight of the UAV main body 1, the acceleration wheels 6 give the supplies an opposite acceleration at the same speed as the flight, and the two cancel each other out, and the moving speed relative to the ground is close to zero. Under the action of gravity, the supplies will fall at the position where they need to be dropped, achieving the effect of improving the dynamic dropping accuracy of the UAV.

[0067] In the third step, while the second servo motor 9 drives the spiral feeding rod 4 to rotate counterclockwise for dropping the supplies, the output shaft of the second servo motor 9 will also synchronously drive the two lead screws 14 to rotate counterclockwise through the second synchronous pulley set 15. Since the two threaded sleeves 17 are respectively threadedly connected to the two lead screws 14, the counterweight 16 will be driven to move from the rear to the front through the threaded sleeves 17, that is, the supplies move from the front to the rear, and the center of gravity gradually shifts backward. During this process, the counterweight 16 will move from the rear to the front synchronously, which can keep the center of gravity unchanged, achieving the effect of being beneficial to the stable flight of the UAV.

[0068] The embodiments of the present invention are given for the purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thus design various embodiments with various modifications suitable for specific purposes.

Claims

1. A parabolic release device for a drone, comprising a drone main body (1), characterized in that: A carrier frame (2) is installed on the UAV body (1), a storage cylinder (3) is fixedly installed on the carrier frame (2), a spiral feeding rod (4) is rotatably installed inside the storage cylinder (3), a bracket (5) is fixedly installed at the bottom end of the storage cylinder (3), accelerating wheels (6) are symmetrically and rotatably installed on the bracket (5), a first servo motor (7) is fixedly installed on the bracket (5), a gear set (8) is installed between the first servo motor (7) and the accelerating wheels (6), a second servo motor (9) is fixedly installed on the carrier frame (2), a first synchronous pulley set (11) is installed between the output shaft of the second servo motor (9) and the spiral feeding rod (4), a rotary encoder (12) is fixedly installed on the carrier frame (2), and a fan blade (13) is installed on the input shaft of the rotary encoder (12).

2. The parabolic release device for an unmanned aerial vehicle according to claim 1, wherein Lead screws (14) are symmetrically and rotatably installed on the carrier frame (2), and a second synchronous pulley set (15) is installed between the lead screws (14) and the output shaft of the second servo motor (9).

3. The parabolic release device for a drone according to claim 2, wherein Counterweight blocks (16) are arranged on the two lead screws (14).

4. The parabolic release device for a drone according to claim 3, wherein, Threaded sleeves (17) are symmetrically and fixedly installed at both ends of the counterweight block (16), and the two threaded sleeves (17) are respectively threadedly connected to the two lead screws (14).

5. The parabolic release device for an unmanned aerial vehicle according to claim 1, characterized in that, A first end face bevel gear (18) is fixedly installed on the spiral feeding rod (4).

6. The parabolic release device for a drone according to claim 1, characterized in that, A feeding tray (19) is rotatably installed on the spiral feeding rod (4), and a second end face bevel gear (21) is slidably installed on the feeding tray (19).

7. The parabolic release device for a drone according to claim 6, characterized in that, A spring (22) is installed between the second end face bevel gear (21) and the feeding tray (19).

8. The parabolic release device for a drone according to claim 7, wherein, A feeding rod (23) is fixedly installed on the second end face bevel gear (21).

9. The parabolic release device for a drone according to claim 8, characterized in that, A threaded column (24) is slidably installed on the feeding rod (23).

10. The parabolic release device for an unmanned aerial vehicle according to claim 1, characterized in that, A transparent panel (25) is fixedly installed on the storage cylinder (3), and a flow deflector (26) is fixedly installed on the storage cylinder (3).

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