A foldable rotor drone
By designing a drone with foldable rotors and cushioning support components, the problems of large space occupation and unstable landing of rotor structures have been solved, achieving convenient folding and stable landing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QIHANG AEROSPACE TECHNOLOGY (NINGBO) CO LTD
- Filing Date
- 2025-04-16
- Publication Date
- 2026-05-26
AI Technical Summary
The rotor structure of existing drones is non-foldable, resulting in a fixed overall size. This leads to a large space requirement for transportation and storage, and the landing gear lacks a cushioning structure, which affects the stable landing of the drone.
A foldable rotor structure was designed, which achieves rotor folding through elastic ropes and connectors, combined with support components to buffer landing impact force, and uses an arc-shaped plate of nylon and glass fiber composite material for buffering and stabilizing support.
It enables convenient folding of the rotor, reducing transportation and storage space requirements, while improving the landing stability and impact resistance of the drone.
Smart Images

Figure CN224277608U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a UAV with foldable rotors. Background Technology
[0002] Unmanned Aerial Vehicles (UAVs) are aircraft that fly remotely or autonomously without direct human pilot control. They typically consist of an airframe, a power system (such as motors and propellers), sensors, and a control system (such as GPS and gyroscopes), and are widely used in civilian, commercial, and military fields.
[0003] In the existing technology, the non-foldable rotor structure results in a fixed overall size of the drone, which requires a lot of space for transportation and storage. Especially when moving in a vehicle or operating in the field, it is difficult to deploy quickly or adapt to narrow environments. In addition, the landing gear at the bottom of ordinary drones is usually made of rigid materials, which lacks cushioning during landing and is prone to impacting the delicate components inside the drone, affecting the stable landing of the drone. Utility Model Content
[0004] Therefore, it is necessary to provide a foldable rotor drone to address the aforementioned technical problems.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A foldable rotor drone, comprising:
[0007] The drone body has a folding component on its top.
[0008] A fixing component is disposed in the middle of the folding component for fixing the fixing component;
[0009] A support component is disposed at the bottom of the drone body to assist the drone body in landing.
[0010] As a preferred embodiment of the foldable rotor drone provided by this utility model, the folding assembly includes an adapter, the bottom end of which is connected to the middle of the top of the drone body, six long cylinders are rotatably connected to the outside of the adapter, and a sleeve is provided on the top of the adapter.
[0011] In a preferred embodiment of the foldable rotor drone provided by this utility model, six short rods are rotatably connected to the outside of the sleeve, and one end of each short rod is rotatably connected to the middle of the corresponding long tube.
[0012] In a preferred embodiment of the foldable rotor drone provided by this utility model, a stop block is fitted at one end of the long tube, a rotor body is provided on one side of the stop block, a plug is connected to the bottom end of the rotor body, and an elastic rope is connected to one side of the rotor body.
[0013] In a preferred embodiment of the foldable rotor drone provided by this utility model, one end of the elastic rope is connected to one side of the stop block, and the bottom end of the plug is engaged with one end of the long tube. The stop block restricts rotor oscillation during flight.
[0014] In a preferred embodiment of the foldable rotor drone provided by this utility model, the fixing component includes a fixing cylinder, the bottom end of which is connected to the top end of the adapter, and two through holes are provided on one side of the fixing cylinder.
[0015] In a preferred embodiment of the foldable rotor drone provided by this utility model, a connector is provided inside the fixing cylinder. A positioning member and a pressing member are connected to one side of the connector, and the pressing member and pressing member respectively pass through the interior of corresponding through holes. The positioning member is engaged with the top of the sleeve to form a rigid support.
[0016] In a preferred embodiment of the foldable rotor drone provided by this utility model, the other three sides of the connector are connected with connecting springs, and one end of the connecting spring is connected to the inner wall of the fixed cylinder.
[0017] In a preferred embodiment of the foldable rotor drone provided by this utility model, the support assembly includes two arc-shaped plates, the top of which is connected to the bottom of the drone body.
[0018] In a preferred embodiment of the foldable rotor drone provided by this utility model, triangular grooves are provided on both sides of the arc-shaped plate, and the two arc-shaped plates are connected by a connecting plate.
[0019] Compared with the prior art, the present invention has the following beneficial effects:
[0020] This utility model provides a foldable rotor drone. By pressing the press button, a spring is triggered, causing the rotor body to rotate around the short rod until it fits against the long tube. With the elastic contraction of the elastic rope, the rotor is folded to a parallel state with the fuselage, reducing the storage volume and making it easy to carry or transport. Users only need to press the press button with one finger to unlock the positioning parts of multiple rotors simultaneously. The step-by-step unlocking is achieved by utilizing the length difference of the connecting springs, reducing the operation time for storage.
[0021] This utility model provides a foldable rotor drone. Through the setting of support components, it avoids the bottom of the fuselage from directly contacting uneven ground or obstacles, thus helping to reduce the impact force generated when the drone lands. By setting special triangular grooves, controllable plastic deformation occurs at the moment of ground contact, converting the vertical impact kinetic energy into the internal energy of the material. Its asymmetric honeycomb structure design can directionally absorb multi-angle impacts, buffering the impact force and reducing the impact on the drone. The connecting plate provides a stable support structure to ensure that the drone remains horizontal when parked and avoids tipping over. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 A schematic diagram of the overall structure of this utility model;
[0024] Figure 2 A schematic diagram of the adapter structure provided by this utility model;
[0025] Figure 3 A schematic diagram of the folding component structure provided by this utility model;
[0026] Figure 4 A schematic diagram of the fixing component structure provided by this utility model;
[0027] Figure 5 A schematic diagram of the stop block structure provided by this utility model;
[0028] Figure 6 A schematic diagram of the support component structure provided by this utility model.
[0029] The markings in the diagram are explained as follows:
[0030] 1. Drone body; 2. Folding assembly; 21. Adapter; 22. Sleeve; 23. Long cylinder; 24. Short rod; 25. Stop block; 26. Rotor body; 27. Insert; 28. Elastic rope; 3. Fixing assembly; 31. Fixing cylinder; 32. Through hole; 33. Connector; 34. Positioning component; 35. Pressing component; 36. Connecting spring; 4. Support assembly; 41. Curved plate; 42. Triangular groove; 43. Connecting plate. Detailed Implementation
[0031] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention. Example
[0032] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 A foldable rotor drone includes a drone body 1, a fixing component 3, and a support component 4. The top of the drone body 1 is provided with a folding component 2; the fixing component 3 is provided in the middle of the folding component 2 to fix the fixing component 3; and the support component 4 is provided at the bottom of the drone body 1 to assist the drone body 1 in landing.
[0033] Preferably, the folding assembly 2 includes an adapter 21, the bottom end of which is connected to the middle of the top of the drone body 1, six long cylinders 23 are rotatably connected to the outside of the adapter 21, and a sleeve 22 is provided on the top of the adapter 21.
[0034] Preferably, the sleeve 22 is rotatably connected to six short rods 24, one end of which is rotatably connected to the middle of the corresponding long cylinder 23.
[0035] Preferably, a stop block 25 is fitted at one end of the long tube 23, a rotor body 26 is provided on one side of the stop block 25, an insert 27 is connected to the bottom end of the rotor body 26, and an elastic rope 28 is connected to one side of the rotor body 26.
[0036] Preferably, one end of the elastic rope 28 is connected to one side of the stop block 25, and the bottom end of the plug 27 is engaged with one end of the long cylinder 23.
[0037] Preferably, the fixing component 3 includes a fixing cylinder 31, the bottom end of which is connected to the top end of the adapter 21, and two through holes 32 are provided on one side of the fixing cylinder 31.
[0038] Preferably, the fixed cylinder 31 is provided with a connector 33 inside, and a positioning member 34 and a pressing member 35 are connected to one side of the connector 33. The pressing member 35 and the pressing member 35 pass through the interior of the corresponding through hole 32 respectively.
[0039] Preferably, the other three sides of the connector 33 are connected to connecting springs 36, and one end of the connecting spring 36 is connected to the inner wall of the fixed cylinder 31.
[0040] Through the above structural design, the top of the UAV body 1 is provided with multiple rotor bodies 26 to assist the flight of the UAV body 1. The positioning member 34 is squeezed by the connecting spring 36 and protrudes from the outside of the through hole 32, and is locked on the top of the sleeve 22, restricting the sleeve 22 between the positioning member 34 and the pressing member 35. The sleeve 22 is sleeved in the middle of the fixed cylinder 31. The connecting spring 36 on the back of the positioning member 34 is shorter than the connecting spring 36 on the back of the pressing member 35. Pressing the pressing member 35 can cause the positioning member 34 to retract into the inside of the fixed cylinder 31. The tip of the positioning member 34 retracts into the inside of the through hole 32. When the pressing member 35 is released, the positioning member 34 can return to its original position. The user inserts their finger into the gap of the long tube 23 and presses the pressing part 35, which causes the positioning part 34 to retract into the through hole 32. The sleeve 22 is no longer restricted by the positioning part 34 and moves upward, causing the short rod 24 and the long tube 23 to rotate. The long tube 23 is placed vertically upward and flipped to fit against the top of the short rod 24. Pulling the rotor body 26 causes the elastic rope 28 to extend. Rotating the rotor body 26 allows the plug 27 to be inserted into one end of the long tube 23, thus retracting the folding assembly 2. This folds multiple rotors, reducing storage space. The stop block 25 is fitted onto one end of the long tube 23 to restrict the rotation of the rotor body 26, so that the rotor body 26 stands upright on top of the drone body 1 during flight to assist the drone body 1.
[0041] Preferably, the support component 4 includes two arc-shaped plates 41, the top of which is connected to the bottom of the drone body 1.
[0042] Preferably, triangular grooves 42 are provided on both sides of the arc plate 41, and the two arc plates 41 are connected by a connecting plate 43.
[0043] Through the above structural design, a support component 4 is provided at the bottom of the drone body 1. The arc-shaped plate 41 is usually made of nylon and glass fiber composite material. Two arc-shaped plates 41 are evenly arranged in the middle of the drone body 1 to support the drone body 1. The arc-shaped plate 41 can undergo slight deformation. A triangular groove 42 is opened to reduce the weight of the arc-shaped plate 41. At the same time, the special shape of the triangular groove 42 buffers the impact force generated when the drone body 1 lands. During landing, the bottom end of the connecting plate 43 is in contact with the ground. The downward gravity of the drone body 1 presses on the top of the arc-shaped plate 41, compressing the arc-shaped plate 41. The triangular groove 42 contracts towards the center, producing slight deformation and reducing the impact force. The connecting plate 43 increases the contact area between the end of the arc-shaped plate 41 and the ground when the drone body 1 lands, increasing the stability of the drone body 1 during landing.
[0044] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0045] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.
Claims
1. An unmanned aerial vehicle of the foldable rotor type comprising a body (1) of the unmanned aerial vehicle, characterized in that: The top of the drone body (1) is provided with a folding component (2). Fixing component (3), which is disposed in the middle of folding component (2) for fixing component (3); Support component (4) is disposed at the bottom of the UAV body (1) to assist the landing of the UAV body (1).
2. The foldable rotor drone according to claim 1, characterized in that, The folding assembly (2) includes an adapter (21), the bottom end of which is connected to the middle of the top of the drone body (1), six long cylinders (23) are rotatably connected to the outside of the adapter (21), and a sleeve (22) is provided on the top of the adapter (21).
3. The foldable rotor drone according to claim 2, characterized in that, The sleeve (22) is rotatably connected to six short rods (24), one end of which is rotatably connected to the middle of the corresponding long cylinder (23).
4. A foldable rotor drone according to claim 3, characterized in that, One end of the long tube (23) is fitted with a stop block (25), and a rotor body (26) is provided on one side of the stop block (25). A plug (27) is connected to the bottom end of the rotor body (26), and an elastic rope (28) is connected to one side of the rotor body (26).
5. A foldable rotor drone according to claim 4, characterized in that, One end of the elastic rope (28) is connected to one side of the stop block (25), and the bottom end of the plug (27) is engaged with one end of the long cylinder (23).
6. A foldable rotor drone according to claim 1, characterized in that, The fixing component (3) includes a fixing cylinder (31), the bottom end of which is connected to the top end of the adapter (21), and two through holes (32) are opened on one side of the fixing cylinder (31).
7. A foldable rotor drone according to claim 6, characterized in that, The fixed cylinder (31) is provided with a connector (33) inside. A positioning member (34) and a pressing member (35) are connected to one side of the connector (33). The pressing member (35) and the pressing member (35) pass through the interior of the corresponding through hole (32).
8. A foldable rotor drone according to claim 7, characterized in that, The other three sides of the connector (33) are connected to connecting springs (36), one end of which is connected to the inner wall of the fixed cylinder (31).
9. A foldable rotor drone according to claim 1, characterized in that, The support component (4) includes two arc-shaped plates (41), the top of which is connected to the bottom of the UAV body (1).
10. A foldable rotor drone according to claim 9, characterized in that, The arc plate (41) has triangular grooves (42) on both sides, and the two arc plates (41) are connected by a connecting plate (43).