A deformable rotor drone

Abstract

The application discloses a deformable rotor unmanned aerial vehicle and belongs to the technical field of unmanned aerial vehicles. In addition to comprising a rotor unmanned aerial vehicle body, the deformable rotor unmanned aerial vehicle further comprises a guide mechanism, a buoyancy mechanism and a rope driving mechanism. The guide mechanism is fixedly installed on the rotor unmanned aerial vehicle body and is used for guiding the rope driving mechanism. The buoyancy mechanism is a gas bag connected with the guide mechanism and is used for providing buoyancy for the rotor unmanned aerial vehicle body. The rope driving mechanism is used for changing the shape of the gas bag. The deformable rotor unmanned aerial vehicle can effectively improve the endurance of the rotor unmanned aerial vehicle by arranging the buoyancy mechanism, and the buoyancy mechanism can be closely attached to indoor wall surfaces, thereby enhancing the concealment of the rotor unmanned aerial vehicle.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicles (UAVs), and in particular to a deformable rotor UAV. Background Art

[0002] Unmanned reconnaissance and strike platforms play a crucial role in indoor combat. Existing reconnaissance and strike platforms primarily consist of wheeled, tracked, or legged robots and rotary-wing drones. Robots primarily suffer from insufficient obstacle-crossing capabilities, limited reconnaissance space, and a lack of concealment. Rotary-wing drones offer greater flexibility than robots, but their main drawbacks include limited endurance, resulting in shorter flight times, and the potential for collisions and damage when flying indoors. Summary of the Invention

[0003] In view of this, the present invention provides a deformable rotor drone. By providing a buoyancy mechanism, the deformable rotor drone can effectively improve the drone's endurance. Furthermore, the buoyancy mechanism can cling closely to indoor walls, enhancing the drone's concealment. Furthermore, the buoyancy mechanism can flexibly change shape, enabling the drone to easily pass through narrow passages such as doors and windows, thereby better performing reconnaissance and strike missions. The technical solution is as follows:

[0004] A deformable rotor UAV comprises a rotor UAV body, a guide mechanism, a buoyancy mechanism and a rope drive mechanism;

[0005] The guide mechanism is fixedly mounted on the body of the rotary-wing UAV and is used to guide the rope drive mechanism;

[0006] The buoyancy mechanism is an air bag connected to the guide mechanism, and is used to provide buoyancy for the rotor UAV body;

[0007] The rope driving mechanism is used to change the shape of the airbag.

[0008] Furthermore, the rope driving mechanism includes a main rope and a power unit for controlling the retraction or release of the main rope;

[0009] The power unit is fixedly mounted on the body of the rotary-wing UAV;

[0010] One end of the main rope is divided into at least two branch ropes, the end of each branch rope is fixed to the bottom of the inner side of the airbag, and the other end is fixed to the output end of the power unit;

[0011] When the power unit controls the main rope to be retracted, the branch rope pulls the airbag to deform it; when the power unit controls the main rope to be released so that the branch rope has no pulling force on the airbag, the airbag expands and returns to its initial state.

[0012] Furthermore, the guide mechanism includes a hollow tube and a clamping sleeve sleeved on the outside of the hollow tube;

[0013] The main rope is passed through the hollow tube;

[0014] The opening of the airbag is first clamped between the clamping sleeve and the hollow tube, and then bonded to the main rope to form a sealed state.

[0015] Furthermore, the guide structure further includes legs;

[0016] One end of the support leg is fixedly mounted on the top of the rotor UAV body, and the other end is fixedly mounted on the bottom of the hollow tube.

[0017] Furthermore, the end of the branch rope is fixed to the bottom of the inner side surface of the airbag through a fixing structure.

[0018] Furthermore, the fixing structure includes a nut and a bolt provided with a through hole and a clamping claw;

[0019] The clamping jaw is provided with an external thread, and the nut is provided with a corresponding internal thread. The threaded connection between the clamping jaw and the nut can make the clamping jaw present a clamping state;

[0020] The end of the branch rope passes through the through hole of the bolt and is clamped between the clamping claws together with the bottom of the inner side surface of the airbag.

[0021] Furthermore, the number of the branch ropes is four, and the ends of the four branch ropes are evenly distributed along the circumferential direction at the bottom of the inner side surface of the airbag.

[0022] Furthermore, the density of the top of the airbag is greater than the density at other positions of the airbag.

[0023] Furthermore, the deformable rotor UAV also includes an onboard weapon and / or camera fixedly mounted on the rotor UAV body.

[0024] Furthermore, the airbag is a disc-shaped airbag, which can be transformed into a cylindrical airbag.

[0025] Beneficial effects:

[0026] (1) The airbag provided in the deformable rotor drone provided by the present invention can provide buoyancy for the rotor drone, improve the endurance of the rotor drone, and enable the rotor drone to fly close to the indoor wall, thereby enhancing the concealment of the drone. At the same time, when a rotor drone without an airbag is flying indoors, it must maintain a safe distance from surrounding objects. The deformable rotor drone of the present invention can fly close to the indoor ceiling, thereby avoiding collision with indoor objects. In addition, the airbag has a certain elasticity, so even if it collides with an object, it will not damage the drone, thereby solving the problem that ordinary rotor drones are prone to collision and thus damage to the drone when flying indoors. In addition, the airbag can also flexibly change its shape, so that the deformable rotor drone can easily pass through narrow passages such as doors and windows to better perform flight missions.

[0027] (2) The guide mechanism provided in the deformable rotor UAV provided by the present invention can ensure that the main rope applies a pulling force in a predetermined direction to the airbag, thereby causing the airbag to change its shape, so that the deformable rotor UAV can adapt to different flight environments; in addition, the opening of the airbag is clamped on the guide mechanism and bonded to the main rope, so that the guide mechanism not only fixes the airbag to prevent the airbag from moving downward as a whole and not deforming when the airbag is pulled by the rope, but also plays a role in auxiliary sealing.

[0028] (3) The deformable rotor drone provided by the present invention fixes the end of the branch rope to the bottom of the inner side of the airbag through a clamp, ensuring the reliability of the fixation of the rope and the airbag. Moreover, when fixing or disassembling, it only needs to turn the nut, which is simple and convenient to operate.

[0029] (4) The density of the top of the airbag provided in the deformable rotor UAV provided by the present invention is greater than the density at other positions of the airbag, making the top of the airbag least likely to deform, thereby ensuring that the top of the airbag maintains a relatively flat shape after deformation, reducing the longitudinal height of the deformable rotor UAV, and further enhancing its concealment.

[0030] (5) The deformable rotor drone provided by the present invention can carry out accurate and effective reconnaissance and attack on targets by carrying onboard weapons and cameras.

[0031] (6) The airbag of the deformable rotor drone provided by the present invention is a disc-shaped airbag when it is not deformed, and a columnar airbag after deformation. The disc-shaped airbag has a small longitudinal height and a large top surface area, which can enable the deformable rotor drone to have better concealment performance when it is tightly attached to the indoor roof; and the columnar airbag greatly facilitates the deformable rotor drone to pass through some narrow environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 Schematic diagram of the structure of the deformable rotor UAV airbag before deformation of the present invention;

[0033] Figure 2 Schematic diagram of the structure of the deformable rotor UAV airbag after deformation of the present invention;

[0034] Figure 3 This is a schematic diagram showing the principle of the deformable rotary wing UAV airbag forming a sealed state according to the present invention;

[0035] Figure 4 Schematic diagram of the structure of the guide mechanism in the deformable rotor UAV of the present invention;

[0036] Figure 5 Schematic diagram of the connection between the guide mechanism and the rope drive mechanism in the deformable rotor UAV of the present invention;

[0037] Figure 6 This is a structural diagram of the connection between the main rope and the motor in the deformable rotor drone of the present invention;

[0038] Figure 7 Schematic diagram of the structure of the fixed structure in the deformable rotor UAV of the present invention;

[0039] Among them, 1-rotor drone body, 2-disc-shaped airbag, 3-motor, 4-main rope, 5-branch rope, 6-motor output end, 7-cylindrical airbag, 8-hollow tube, 9-clamping sleeve, 10-opening, 11-leg, 12-fixing structure, 13-nut, 14-clamping claw, 15-bolt, 16-missile, 17-camera, 18-weapon gimbal, 19-camera gimbal. DETAILED DESCRIPTION

[0040] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0041] Example 1:

[0042] This embodiment provides a deformable rotor drone, such as Figures 1 to 6 As shown in the structure, the deformable rotor UAV includes a rotor UAV body, a guide mechanism, a buoyancy mechanism and a rope drive mechanism, wherein:

[0043] The guide mechanism is vertically fixed on the rotorcraft body 1 and is used to guide the rope drive mechanism; the buoyancy mechanism is an airbag connected to the guide mechanism, which is used to provide buoyancy for the rotorcraft body 1 (the size of the airbag can be flexibly set according to the specific situation, so that the buoyancy of the rotorcraft body 1 is provided by the airbag or by the airbag and the rotor of the rotorcraft body 1). In this embodiment, the airbag is a disc-shaped airbag 2 that is disc-shaped in its natural state. The disc-shaped airbag 2 is sealed with a gas with a density less than that of air, such as helium or hydrogen or a mixture of helium and hydrogen. In addition, the rotor of the rotorcraft body 1 can also be used to adjust the heading and attitude of the rotorcraft body 1; the rope drive mechanism is used to change the shape of the airbag.

[0044] Example 2:

[0045] Based on the above-mentioned embodiment 1, this embodiment provides a specific rope drive mechanism, which includes a main rope 4 and a power unit for controlling the retraction or release of the main rope 4. In this embodiment, the power unit is a motor 3, which is fixedly installed on the rotor UAV body 1. One end of the main rope 4 is divided into at least two branch ropes 5, and the end of each branch rope 5 is fixed to the bottom of the inner side surface of the airbag 2. The other end of the main rope 4 is fixed to the motor output end 6 (the output end is provided with a reel, and the main rope 4 can be wound on the reel when retracted). The number of branch ropes 5 is four, and the ends of the four branch ropes 5 are evenly distributed along the circumference at the bottom of the inner side surface of the airbag 2. In this way, the disc-shaped airbag 2 can be subjected to more uniform force.

[0046] like Figure 2 、 5 and Figure 6 As shown, when the motor output end 6 rotates and controls the main rope 4 to be retracted, the branch rope 5 pulls the disc-shaped airbag 2, causing the disc-shaped airbag 2 to deform. The specific shape after deformation is related to the force applied to the disc-shaped airbag 2. In this embodiment, the deformed airbag is a cylindrical airbag 7, which enables the deformable rotor drone to easily pass through narrow passages such as doors and windows to better perform flight missions. Figure 1As shown, when the motor output end 6 rotates and releases the main rope 4, the branch rope 5 has no pulling force on the disc-shaped airbag 2, and the cylindrical airbag 7 radially expands and returns to the disc shape in its natural state, which can provide buoyancy for the rotor UAV body 1, improve the endurance of the rotor UAV body 1, and enable the deformable rotor UAV to fly close to the indoor wall, thereby enhancing the concealment of the deformable rotor UAV. In addition, the density of the top of the disc-shaped airbag 2 is greater than the density of other positions of the disc-shaped airbag 2. The specific implementation method can be to use a material with a higher density for the top of the airbag 2, or to set a small chamber on the top of the disc-shaped airbag 2, and then fill the small chamber with a gas with a higher density. In this way, the top of the disc-shaped airbag 2 is least likely to be deformed under the expansion and extrusion of the gas inside the airbag, thereby ensuring that the disc-shaped airbag 2 bulges upward under the tension of the dividing rope 5 to form a cylindrical airbag 7 with a relatively flat top, thereby reducing the longitudinal height of the entire deformable rotor drone, and also enabling the deformable rotor drone to fly closer to objects, further enhancing its concealment.

[0047] In addition, since ordinary rotor drones without airbags must maintain a safe distance from surrounding objects when flying indoors, the deformable rotor drone of this embodiment can fly close to the indoor ceiling, avoiding collisions with indoor objects. In addition, the airbag has a certain elasticity, so even if it collides with an object, it will not damage the rotor drone. This solves the problem that ordinary rotor drones are prone to collisions and damage to the drone when flying indoors, as well as the problem of poor concealment.

[0048] Example 3:

[0049] Based on the above embodiment 2, this embodiment provides a specific guide mechanism, such as Figure 4 As shown, the guide mechanism includes a hollow tube 8 and a clamping sleeve 9 sleeved on the outside of the hollow tube 8. Figure 3 , the main rope 4 is passed through the hollow tube 8; the opening 10 (bottom) of the airbag is first clamped between the clamping sleeve 9 and the hollow tube 8, and then bonded to the main rope 4 in the inner cavity of the hollow tube 8 to form a sealed state. It should be noted that the opening 10 between the clamping and bonding should have a sufficient length ( Figure 3 The main rope 4 is not shown to have sufficient length) so that the main rope 4 can be smoothly retracted without being pulled by this opening 10.

[0050] according to Figure 1 、 2 , 3 and Figure 5It can be seen that the guide mechanism can ensure that the main rope 4 applies radial tension to the inner bottom of the disc-shaped airbag 2 through the branch rope 5, so that the disc-shaped airbag 2 is changed into a cylindrical airbag 7, so that the deformable rotor drone can adapt to different flight environments; in addition, the opening 10 of the airbag is clamped in the guide mechanism and is also bonded to the main rope 4, so that the guide mechanism plays a role in fixing the airbag to prevent the disc-shaped airbag 2 from moving downward and not being able to deform when being pulled by the branch rope 5, and also plays a role in assisting the sealing of the airbag, that is, the sealing can be completed only through the cooperation of the guide mechanism and the main rope 4, without the need for an additional sealing structure, and the structure is simple and compact.

[0051] Reference Figure 1 、 2 and Figure 4 The guide structure further includes a support leg 11, one end of which is fixedly mounted on the top of the rotor UAV 1 by a fastening screw, and the other end is fixedly mounted on the bottom of the hollow tube 8, so that Figure 5 As shown, a space in which the main rope 4 and the motor output end 6 are fixedly connected can be formed between the top of the rotor drone 1 and the bottom of the hollow tube 8. When the motor output end 6 rotates in a certain direction, it can directly provide a vertical downward pulling force to the main rope 4, thereby more sensitively controlling the change in the shape of the airbag.

[0052] Example 4:

[0053] On the basis of the above embodiment 1, this embodiment provides a specific fixing structure 12 for fixing the end of the split rope 5 to the bottom of the inner side of the disc-shaped airbag 2, such as Figure 7 As shown, the fixing structure 12 includes a nut 13 and a bolt 15 provided with a through hole and a clamping jaw 14, wherein the clamping jaw 14 is provided with an external thread and the nut 13 is provided with a corresponding internal thread. The end of the dividing rope 5 passes through the through hole of the bolt 15 and is placed between the clamping jaws 14 together with the bottom of the inner side surface of the disc-shaped airbag 2. Then the nut 13 is tightened to clamp the clamping jaw 14. In this way, the end of the dividing rope 5 can be firmly fixed to the lower part of the inner side surface of the disc-shaped airbag 2. Obviously, this fixed position is the force point of the disc-shaped airbag 2. Through this firm force point, it is effectively guaranteed that the dividing rope 5 can smoothly apply tension to the disc-shaped airbag 2, and when fixing or disassembling, it is only necessary to twist the nut, which is simple and convenient to operate.

[0054] In addition, the fixing structure is made of plastic parts, which can significantly reduce the weight of the deformable rotor drone and make the volume of the disc-shaped airbag 2 not need to be too large to make the drone float.

[0055] Embodiment 5:

[0056] On the basis of the above-mentioned embodiment 1, this embodiment provides a deformable rotor UAV that can realize reconnaissance and / or attack functions, that is, the deformable rotor UAV in embodiment 1 is equipped with airborne weapons (two small missiles 16 in this embodiment) and / or cameras 17. Specifically, Figure 1 and Figure 2 As shown, two small missiles 16 and a camera 17 are fixed to the bottom of the deformable rotor drone through a weapon platform 18 and a camera platform 19 respectively, and both the two small missiles 16 and the camera 17 can rotate 360 ​​degrees to accurately scout and strike the target.

[0057] It is worth noting that this deformable rotor drone can be used not only indoors but also outdoors.

[0058] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A deformable rotor UAV, comprising a rotor UAV body, characterized in that: It also includes a guide mechanism, a buoyancy mechanism, and a rope drive mechanism; The guide mechanism is fixedly mounted on the body of the rotary-wing UAV and is used to guide the rope drive mechanism; The buoyancy mechanism is an air bag connected to the guide mechanism, and is used to provide buoyancy for the rotor UAV body; The rope drive mechanism is used to change the shape of the airbag; The rope driving mechanism includes a main rope and a power unit for controlling the retraction or release of the main rope; The power unit is fixedly mounted on the body of the rotary-wing UAV; One end of the main rope is divided into at least two branch ropes, the end of each branch rope is fixed to the bottom of the inner side of the airbag, and the other end is fixed to the output end of the power unit; When the power unit controls the main rope to be retracted, the branch rope pulls the airbag to deform it; when the power unit controls the main rope to be released so that the branch rope has no pulling force on the airbag, the airbag expands and returns to its initial state; The guide mechanism includes a hollow tube and a clamping sleeve sleeved on the outside of the hollow tube; The main rope is passed through the hollow tube; The opening of the airbag is first clamped between the clamping sleeve and the hollow tube, and then bonded to the main rope to form a sealed state; The density at the top of the airbag is greater than the density at other locations of the airbag.

2. The deformable rotor drone according to claim 1, wherein: The guide mechanism further includes legs; One end of the support leg is fixedly mounted on the top of the rotor UAV body, and the other end is fixedly mounted on the bottom of the hollow tube.

3. The deformable rotor drone according to claim 1, wherein: The end of the branch rope is fixed to the bottom of the inner side surface of the airbag through a fixing structure.

4. The deformable rotor drone according to claim 3, wherein: The fixing structure includes a nut and a bolt provided with a through hole and a clamping claw; The clamping jaw is provided with an external thread, and the nut is provided with a corresponding internal thread. The threaded connection between the clamping jaw and the nut can make the clamping jaw present a clamping state; The end of the branch rope passes through the through hole of the bolt and is clamped between the clamping claws together with the bottom of the inner side surface of the airbag.

5. The deformable rotor drone according to claim 1, wherein: The number of the branch ropes is four, and the ends of the four branch ropes are evenly distributed along the circumferential direction at the bottom of the inner side surface of the airbag.

6. The deformable rotor drone according to claim 1, wherein: It also includes airborne weapons and / or cameras fixedly mounted on the body of the rotary-wing UAV.

7. The deformable rotor drone according to claim 1, wherein: The airbag is a disc-shaped airbag, which can be transformed into a columnar airbag.

Images