Telescopic wing of unmanned aerial vehicle

Abstract

The utility model provides a telescopic wing of an unmanned aerial vehicle, which belongs to the technical field of unmanned aerial vehicle design and comprises a fixed joint and a plurality of telescopic joints, one end of the fixed joint is fixed on the unmanned aerial vehicle, and the other end of the fixed joint is sleeved with the telescopic joints from large to small; the fixed joints and the telescopic joints as well as the telescopic joints realize sliding telescoping through transmission assemblies; the transmission assembly comprises a transmission rack, the transmission rack is fixed to one side of the small telescopic joint, the tail end of the large telescopic joint or the tail end of the fixed joint is connected with a driving gear matched with the transmission rack, and the driving gear is in driving connection with the driving part. The driving gear drives the transmission rack on the expansion joint to move to realize expansion and contraction of the wing, so that the telescopic wing is high in practicability and can better adapt to different flight environments and task requirements.

Description

Technical Field

[0001] This utility model belongs to the field of unmanned aerial vehicle (UAV) design technology, specifically relating to a retractable wing for a UAV. Background Technology

[0002] With the rapid development of drone technology, retractable wing technology has become a significant innovation in drone design. This technology not only improves the flexibility and adaptability of drones but also paves new avenues for their widespread application.

[0003] Traditional drone wing designs are often fixed and unchanging, making it difficult to meet the needs of different flight missions. However, in practical applications, drones frequently need to fly in diverse environments and conditions, such as complex terrains like urban spaces, mountains, and oceans. Fixed-wing designs are often severely limited in these complex environments, failing to fully utilize the drone's performance. Therefore, a retractable wing for drones is needed to solve these problems. Utility Model Content

[0004] To address the problems existing in the prior art, a retractable wing for unmanned aerial vehicles (UAVs) is proposed.

[0005] The technical solution of this utility model to solve the technical problem is as follows: a telescopic wing for a drone, comprising a fixed section and several telescopic sections, one end of the fixed section being fixed to the drone, and the other end of the fixed section being fitted with several telescopic sections from large to small; the fixed section and the telescopic sections, and the telescopic sections are connected to each other through a transmission assembly to achieve sliding extension and retraction; the transmission assembly includes a transmission rack, which is fixed to one side of a smaller telescopic section, and the end of a larger telescopic section or the fixed section is connected to a drive gear that cooperates with the transmission rack, and the drive gear is driven to connect with a drive component.

[0006] Preferably, the ends of the fixed section and the telescopic section are connected to a protrusion with a bottom opening, and the drive gear is located inside the protrusion; a drive component is connected inside the protrusion, the drive component is a drive motor, and the output shaft of the drive motor drives and connects to the drive gear; the bottom of the drive gear extends out of the protrusion and connects to the transmission rack on the next telescopic section.

[0007] Preferably, the drive motor is a servo motor, which enables the drive gear to clamp the expansion joint.

[0008] Preferably, at least one set of driven gears is rotatably connected inside the protrusion, and the driven gears cooperate with the transmission rack to improve the smoothness of extension and retraction.

[0009] Preferably, the protrusion is further provided with a clamping assembly, which includes a crossbar that is slidably connected to the inner wall of the protrusion. A limiting block is connected to the crossbar, and the limiting block can clamp and fix the driven gear. A return spring is sleeved on the crossbar, with one end of the return spring connected to the side wall of the protrusion and the other end connected to the limiting block. A boss is provided at the end corresponding to the next telescopic section, and the top of the boss can push the limiting block to move.

[0010] Preferably, the protrusion is also connected to a communication control system that controls each component, receives extension and retraction commands, and executes the commands; the protrusion is also connected to a power supply system that supplies power to each electrical component, the power supply system including a battery and a charging device.

[0011] Preferably, the protrusion is further provided with a clamping component, which includes an electric telescopic rod. The electric telescopic rod is fixed on the inner wall of the protrusion, and the telescopic end of the electric telescopic rod is connected to a limiting block. The limiting block can clamp and fix the driven gear.

[0012] Preferably, an infrared sensor is connected to the inner wall of the telescopic joint on one side of the protrusion. When the end of the next telescopic joint passes the infrared sensor, the electric telescopic rod is activated to fix the driven gear.

[0013] Compared with existing technologies, the above technical solution has the following advantages or beneficial effects:

[0014] 1. This invention achieves wing extension and retraction by driving a transmission rack on a telescopic joint via a drive gear. It is highly practical and can better adapt to different flight environments and mission requirements. During takeoff and landing, the extended wings provide greater lift, ensuring the UAV can stably perform vertical takeoff and landing or achieve takeoff and landing over short distances. When performing high-altitude, high-speed flight missions, the wings can retract, reducing drag and improving flight efficiency.

[0015] 2. By setting a driven gear and a clamping component, this utility model improves the smoothness of extension and retraction, and can limit the extension and retraction to the maximum extent by using a clamping device, thereby improving the practicality of the device. Attached Figure Description

[0016] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a top view of this utility information when it is extended.

[0019] Figure 3 This is a top view of the present invention when it is retracted.

[0020] Figure 4 yes Figure 2 A schematic diagram of the structure at point A in the middle.

[0021] Figure 5 This is a schematic diagram of the clamping component in the non-limited state in Embodiment 3.

[0022] Figure 6 This is a schematic diagram of the limiting state of the clamping component in Embodiment 3.

[0023] Figure 7 This is a cross-sectional view of the inside of the protrusion.

[0024] Figure 8 This is the control diagram for the communication control system.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Fixed section; 2. Telescopic section; 31. Transmission rack; 32. Protrusion; 33. Communication control system; 34. Battery; 35. Drive gear; 36. Output shaft; 37. Driven gear; 38. Drive motor; 41. Limit block; 42. Electric telescopic rod; 43. Infrared sensor; 44. Crossbar; 45. Return spring; 46. Boss. Detailed Implementation

[0027] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings. The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and / or letters in different examples. This repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. It should be noted that the components illustrated in the drawings are not necessarily drawn to scale. The present invention omits descriptions of well-known components and processing techniques and processes to avoid unnecessarily limiting the present invention. The terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate orientation or positional relationships based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example 1:

[0029] Please see Figures 1-8 To achieve the extension and retraction of a drone wing, a drone retractable wing is proposed, comprising a fixed section 1 and several retractable sections 2. One end of the fixed section 1 is fixed to the drone, and the other end of the fixed section 1 is fitted with several retractable sections 2, which can extend and retract synchronously, reducing extension and retraction time. The fixed section 1 and the retractable sections 2, as well as the retractable sections 2, are slidably extended and retracted through a transmission assembly. The transmission assembly includes a transmission rack 31, which is fixed to one side of the smaller retractable section 2. The end of the larger retractable section 2 or the fixed section 1 is connected to a drive gear 35 that meshes with the transmission rack 31. The drive gear 35 is driven by a drive component. Furthermore, the communication control system and power supply system are also fixed at this location. In this embodiment, the drive motor 38 is a servo motor, which stops when the wing is extended to its maximum length, thus fixing the drive gear 35 and locking the retractable section 2.

[0030] In this embodiment, the ends of the fixed section 1 and the telescopic section 2 are connected to the protrusion 32 with the bottom opening, and the drive gear 35 is located inside the protrusion 32; the protrusion 32 is connected to the drive component, which is the drive motor 38, and the output shaft 36 of the drive motor 38 drives and connects to the drive gear 35; the bottom of the drive gear 35 extends out of the protrusion 32 and is connected to the transmission rack 31 on the next telescopic section 2.

[0031] In addition, at least one set of driven gears 37 are rotatably connected within the protrusion 32. The driven gears 37 cooperate with the transmission rack 31 to improve the smoothness of extension and retraction.

[0032] Example 2:

[0033] Continue reading Figures 1-8 The rest is the same as in Embodiment 1, except that: because servo motors are expensive and have high maintenance costs, limiting the maximum extension distance of the wing using a servo motor is costly. Therefore, in this embodiment, a clamping assembly is provided inside the protrusion 32. The clamping assembly includes a crossbar 44, which is slidably connected to the inner wall of the protrusion 32. A limiting block 41 is connected to the crossbar 44, and the limiting block 41 can clamp and fix the driven gear 37. A return spring 45 is sleeved on the crossbar 44, with one end connected to the side wall of the protrusion 32 and the other end connected to the limiting block 41. A boss 46 is provided at the end corresponding to the next telescopic section 2, and the top of the boss 46 can push the limiting block 41 to move. When the extension reaches the maximum position, the boss 46 drives the limiting block 41 to move towards the driven gear 37, eventually clamping the driven gear 37 so that it cannot rotate, thereby limiting the transmission rack 31 and the telescopic section 2.

[0034] Example 3:

[0035] Continue reading Figures 1-7 In this embodiment, another locking mode is proposed, which is:

[0036] The protrusion 32 also includes a clamping assembly, which comprises an electric telescopic rod 42 fixed to the inner wall of the protrusion 32. The telescopic end of the electric telescopic rod 42 is connected to a limiting block 41, which clamps and secures the driven gear 37. The protrusion also contains a communication control system 33 that controls the various components, receiving and executing extension / retraction commands. The protrusion 32 also contains a power supply system that supplies power to the various electrical components, including a battery 34 and a charging device. An infrared sensor 43 is connected to the inner wall of the telescopic joint 2 on one side of the protrusion 32. When the end of the next telescopic joint 2 passes the infrared sensor 43, the electric telescopic rod 42 is activated to secure the driven gear 37. When the infrared sensor 43 detects that the end of the telescopic joint 2 is not obstructing the path, it transmits an electrical signal to the communication control system 33 for processing. The communication control system 33 then controls the electric telescopic rod 42 to extend, causing the limiting block 41 to clamp the driven gear 37, thus achieving the clamping action.

[0037] How to use:

[0038] During takeoff or landing, higher lift is required, so the communication control system 33 controls the drive motor 38 to rotate, which drives the drive gear 35 to rotate in the forward direction to extend the wings and limits them through the clamping assembly. When flying at high speed in the air, the communication control system 33 controls the drive motor 38 to rotate the drive gear 35 in the reverse direction to retract the wings to reduce flight energy consumption.

[0039] Although the specific embodiments of the utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the utility model. Based on the technical solution of the utility model, various modifications or variations that can be made by those skilled in the art without creative effort are still within the scope of protection of the utility model.

Claims

1. A drone telescoping wing, characterized by: The utility model relates to a telescopic antenna for unmanned aerial vehicle, including fixed section (1) and a plurality of telescopic section (2), one end of fixed section (1) is fixed on unmanned aerial vehicle, and the other end of fixed section (1) is set with a plurality of telescopic section (2) from big to small, and fixed section (1) and telescopic section (2) are realized sliding telescopic through transmission assembly between telescopic section (2), and a plurality of telescopic section (2) can synchronous telescopic, and transmission assembly includes communication control system, power supply system, transmission rack (31), transmission rack (31) is fixed in the one side of smaller telescopic section (2), and the end of larger telescopic section (2) or fixed section (1) is connected with the drive gear (35) matched with transmission rack (31), and drive gear (35) is drivenly connected with driving part.

2. The telescopic wing of claim 1, wherein: The end of fixed section (1) and telescopic section (2) is connected with the protruding block (32) of bottom opening, and drive gear (35) is arranged in protruding block (32), and driving part is connected in protruding block (32), and driving part is drive motor (38), and the output shaft (36) of drive motor (38) is drivenly connected with drive gear (35), and the bottom of drive gear (35) is connected with transmission rack (31) on the next telescopic section (2) and protruding block (32) is stretched out.

3. The telescoping wing of claim 2, wherein: Drive motor (38) adopts servo motor, realizes drive gear (35) to the clamping of telescopic section (2).

4. The telescoping wing of claim 2, wherein: Protruding block (32) is also rotatably connected with at least one set of driven gear (37), and driven gear (37) is matched with transmission rack (31) to improve the smoothness of telescoping.

5. The telescoping wing of claim 4, wherein: Protruding block (32) is also provided with clamping assembly, and clamping assembly includes cross bar (44), and cross bar (44) is slidably connected on the inner wall of protruding block (32), and limit block (41) is connected on cross bar (44), and limit block (41) can clamp driven gear (37), and reset spring (45) is sleeved on cross bar (44), and one end of reset spring (45) is connected on the side wall of protruding block (32), and the other end is connected on limit block (41), and the end of next telescopic section (2) is provided with boss (46), and the top of boss (46) can push limit block (41) to move.

6. The telescoping wing of claim 4, wherein: Protruding block (32) is also connected with communication control system (33) for controlling each component, receives telescoping command, and executes the command, and protruding block (32) is also connected with power supply system for supplying power to each electric component, and power supply system includes battery (34) and charging device.

7. The telescoping wing of claim 6, wherein: Protruding block (32) is also provided with clamping assembly, and clamping assembly includes electric telescopic rod (42), and electric telescopic rod (42) is fixed on the inner wall of protruding block (32), and the telescopic end of electric telescopic rod (42) is connected with limit block (41), and limit block (41) can clamp driven gear (37).

8. The telescoping wing of claim 7, wherein: The inner wall of telescopic section (2) on the side of protruding block (32) is connected with infrared sensor (43), and when the end of next telescopic section (2) passes through infrared sensor (43), electric telescopic rod (42) is started to fix driven gear (37).

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