Folding wing structure of unmanned aerial vehicle

Abstract

The utility model discloses an unmanned aerial vehicle folding wing structure which comprises a mounting frame, two sides of the interior of the mounting frame are respectively and fixedly connected with a second hinge shaft, the second hinge shafts are respectively hinged with a folding assembly, the middle of the folding assembly is rotatably connected with a transmission shaft, one side of the transmission shaft is hinged with a second hinge seat, and the other side of the transmission shaft is hinged with a second hinge seat. The second hinge seat is fixedly connected with one end of an electric telescopic rod, the other end of the electric telescopic rod is fixedly connected with a first hinge seat, the first hinge seat is hinged to a cylindrical pin, and the cylindrical pin is fixedly connected with the outer wall of one side of the mounting frame. And the ends, away from the mounting frame, of the folding assemblies are rotationally connected with first hinge shafts correspondingly, the first hinge shafts are fixedly mounted on the two sides of the interior of the connecting frame, and a rotor wing is fixedly mounted at one end of the connecting frame. The electric telescopic rod stretches out and draws back and cooperates with the folding assembly to drive the connecting frame to achieve folding and recycling, the space occupied by the rotor wings is reduced, and carrying and storage are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles, in particular to a foldable wing structure of an unmanned aerial vehicle. Background Art

[0002] Unmanned aircraft, also known as "drones", are aircraft controlled by radio remote control equipment and self-contained program control devices. Drones have been widely used in both military and civilian fields, with a wide range of application scenarios in the civilian field, such as aerial photography, agriculture, express delivery and power inspection.

[0003] After searching, a Chinese patent with publication number CN115214883A discloses a drone, including a drone casing and a drone cover installed on the drone casing, drone arms are arranged at the four corners of the drone casing, a drone propeller is arranged at one end of the drone arm, an inner component frame is arranged on the inner side of the drone casing, a fixed pressing seat is arranged on the inner side of the drone cover, mounting snap-fit ​​grooves are provided on the drone casing and the inner component frame, the drone arm is snap-fitted in the mounting snap-fit ​​groove, the lower end of the fixed pressing seat is pressed against the drone arm, and a heat dissipation mechanism is arranged on the outer side of the inner component frame.

[0004] The wing structure of this drone is the same as that of traditional drones, both of which are fixed-wing structures. Since the wings are fixed and cannot be folded, the storage space is too large and it is inconvenient to use, which limits the carrying and use of the drone. For this reason, we propose a drone folding wing structure to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a foldable wing structure for an unmanned aerial vehicle to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a foldable wing structure of a drone, comprising a mounting frame, two sides of the mounting frame are respectively fixedly connected to hinge shafts 2, the hinge shafts 2 are respectively hinged to folding components, the middle of the folding components is rotatably connected to a transmission shaft, one side of the transmission shaft is hinged to hinge seat 2, the hinge seat 2 is fixedly connected to one end of an electric telescopic rod, the other end of the electric telescopic rod is fixedly connected to hinge seat 1, the hinge seat 1 is hinged to a cylindrical pin, and the cylindrical pin is fixedly connected to an outer wall of one side of the mounting frame;

[0007] One end of the folding assembly away from the mounting frame is rotatably connected to a hinge shaft 1, the hinge shaft 1 is fixedly mounted on both sides of the interior of the connecting frame, and a rotor is fixedly mounted on one end of the connecting frame.

[0008] Preferably, the opening of the mounting frame is larger than the opening of the connecting frame, and mounting holes are provided through both sides of the mounting frame.

[0009] Preferably, the mounting frame and the connecting frame are both U-shaped structures.

[0010] Preferably, the folding assembly includes a transmission link 1, a short link 1, a supporting link, a short link 2, and a transmission link 2. One end of the transmission link 1 is hinged to an articulated shaft 2, the other end of the transmission link 1 is hinged to one side of the transmission shaft, the other side of the transmission shaft is hinged to one end of the short link 2, the other end of the short link 2 is hinged to one side of the transmission link 2, one end of the transmission link 2 is hinged to another articulated shaft 2, and the other end of the transmission link 2 is hinged to an articulated shaft 1.

[0011] Preferably, a short link 1 is provided between the transmission link 1 and the short link 2, one end of the short link 1 is hinged to the transmission shaft, the other end of the short link 1 is hinged to one side of the support link, and both ends of the support link are respectively sleeved on the hinge shaft 1.

[0012] Compared with the prior art, the utility model has the following beneficial effects: through the extension and retraction of the electric telescopic rod, the folding assembly drives the connecting frame to realize folding and recycling, thereby reducing the space occupied by the rotor and facilitating carrying and storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the utility model from another perspective;

[0015] Figure 3 It is a schematic diagram of the planar structure of the folding assembly of the utility model after being folded.

[0016] In the figure: mounting frame 1, mounting hole 101, cylindrical pin 2, hinge seat 1 3, electric telescopic rod 4, hinge seat 2 5, transmission shaft 6, folding assembly 7, transmission connecting rod 1 71, short connecting rod 1 72, supporting connecting rod 73, short connecting rod 2 74, transmission connecting rod 2 75, connecting frame 8, hinge shaft 1 81, rotor 9, hinge shaft 2 10. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] Example 1

[0019] Reference Figure 1 ,2 This is the first embodiment of the present utility model. This embodiment provides a folding wing structure for a drone, which includes a mounting frame 1. On both sides inside the mounting frame 1, hinge shafts two 10 are fixedly connected respectively. The hinge shafts two 10 are respectively hinged to folding components 7. The middle of the folding component 7 is rotationally connected to a transmission shaft 6. On one side of the transmission shaft 6, a hinge seat two 5 is hinged. One end of an electric telescopic rod 4 is fixedly connected to the hinge seat two 5. The other end of the electric telescopic rod 4 is fixedly connected to a hinge seat one 3. The hinge seat one 3 is hinged to a cylindrical pin 2. The cylindrical pin 2 is fixedly connected to the outer wall of one side of the mounting frame 1.

[0020] One end of the folding component 7 away from the mounting frame 1 is respectively rotationally connected to a hinge shaft one 81. The hinge shafts one 81 are fixedly installed on both sides inside a connecting frame 8. One end of the connecting frame 8 is fixedly installed with a rotor 9.

[0021] The mounting frames 1 are symmetrically and fixedly installed on both sides of the fuselage of the drone. In the folded state, the electric telescopic rod 4 retracts. The electric telescopic rod 4 drives the hinge seat two 5 fixedly connected to its end to move towards the mounting frame 1. The hinge seat two 5 drives the hinged transmission shaft 6 to move synchronously. The transmission shaft 6 drives the folding component 7 to work. The folding component 7 drives the connecting frame 8 to move towards the mounting frame 1. The connecting frame 8 drives the fixedly connected rotor 9 to move synchronously, thereby realizing the folding operation of the rotor 9. The rotor 9 is folded on both sides close to the fuselage, thereby reducing the overall occupied space of the rotor 9 and facilitating carrying and storage. When unfolded, the electric telescopic rod 4 extends. The electric telescopic rod 4 drives the fixedly connected hinge seat two 5 to move away from the transmission shaft 6. The transmission shaft 6 drives the folding component 7 to unfold, and then drives the connecting frame 8 to move synchronously away from the mounting frame 1, so that the rotor 9 unfolds, facilitating the working flight of the drone.

[0022] Embodiment 2

[0023] Refer to Figure 1-3 This is the second embodiment of the present utility model. This embodiment is based on the previous embodiment. Specifically, the opening of the mounting frame 1 is larger than the opening of the connecting frame 8. Through holes 101 are provided through both sides of the mounting frame 1. The mounting frame 1 is fixedly installed on both sides of the fuselage of the drone through the through holes 101 in cooperation with screws, and the mounting frames 1 on the same side are symmetrically arranged. The larger opening of the mounting frame 1 facilitates the connecting frame 8 to be received within the opening of the mounting frame 1 during folding.

[0024] Specifically, both the mounting frame 1 and the connecting frame 8 are in a C-shaped structure.

[0025] Specifically, the folding assembly 7 includes a transmission link 71, a short link 72, a supporting link 73, a short link 74, and a transmission link 75. One end of the transmission link 71 is hinged to an articulated shaft 10, the other end of the transmission link 71 is hinged to one side of the transmission shaft 6, the other side of the transmission shaft 6 is hinged to one end of the short link 74, the other end of the short link 74 is hinged to one side of the transmission link 75, one end of the transmission link 75 is hinged to another articulated shaft 10, and the other end of the transmission link 75 is hinged to an articulated shaft 81.

[0026] Furthermore, a short link 72 is provided between the transmission link 1 71 and the short link 2 74, one end of the short link 72 is hinged to the transmission shaft 6, and the other end of the short link 72 is hinged to one side of the support link 73, and both ends of the support link 73 are respectively sleeved on the hinge shaft 81.

[0027] When in the folded state, the electric telescopic rod 4 retracts, the electric telescopic rod 4 drives the articulated seat 2 5 fixed at the end to move toward the mounting frame 1, the articulated seat 2 5 drives the hinged transmission shaft 6 to move synchronously, the transmission shaft 6 drives the folding assembly 7 to work, the folding assembly 7 drives the connecting frame 8 to move toward the mounting frame 1, and the connecting frame 8 drives the fixed rotor 9 to move synchronously, thereby realizing the folding operation of the rotor 9; when unfolding, the electric telescopic rod 4 extends to work, the electric telescopic rod 4 drives the fixed articulated seat 2 5 to move in the direction away from the transmission shaft 6, the transmission shaft 6 drives the folding assembly 7 to unfold, the transmission shaft 6 drives the transmission connecting rod 1 71 to rotate with the articulated shaft 2 10 as the center of the circle, the transmission shaft 6 simultaneously drives the short connecting rod 1 72 and the short connecting rod 2 74 to unfold in the direction away from the mounting frame 1, and then the short connecting rod 1 72 drives the hinged supporting connecting rod 73 to move in the direction away from the mounting frame 1, and when the transmission shaft 6 continues to move, it drives the connecting frame 8 to move synchronously in the direction away from the mounting frame 1, so that the rotor 9 is unfolded, which is convenient for the operation and flight of the UAV.

[0028] Example 3

[0029] Reference Figure 1-3, which is the third embodiment of the utility model. This embodiment is based on the above two embodiments. When in use, the mounting frame 1 is fixedly mounted on both sides of the fuselage of the drone through the mounting hole 101 with screws, and the mounting frames 1 on the same side are symmetrically arranged. When in the folded state, the electric telescopic rod 4 retracts, and the electric telescopic rod 4 drives the hinged seat 2 5 fixed at the end to move toward the mounting frame 1, and the hinged seat 2 5 drives the hinged transmission shaft 6 to move synchronously, and the transmission shaft 6 drives the folding component 7 to work, and the folding component 7 drives the connecting frame 8 to move toward the mounting frame 1, and the connecting frame 8 drives the fixed rotor 9 to move synchronously, thereby realizing the folding operation of the rotor 9, and the rotor 9 is folded on both sides close to the fuselage. This reduces the space occupied by the rotor 9 as a whole, making it convenient to carry and store; when unfolding, the electric telescopic rod 4 extends out to work, and the electric telescopic rod 4 drives the fixed hinge seat 2 5 to move in the direction away from the transmission shaft 6, and the transmission shaft 6 drives the folding assembly 7 to unfold and work, and the transmission shaft 6 drives the transmission link 1 71 to rotate with the hinge shaft 2 10 as the center of the circle, and the transmission shaft 6 simultaneously drives the short link 1 72 and the short link 2 74 to unfold in the direction away from the mounting frame 1, and then the short link 1 72 drives the hinged support link 73 to move in the direction away from the mounting frame 1, and when the transmission shaft 6 continues to move, it drives the connecting frame 8 to move synchronously in the direction away from the mounting frame 1, so that the rotor 9 is unfolded, which is convenient for the operation and flight of the drone.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A foldable wing structure for an unmanned aerial vehicle, comprising a mounting frame (1), characterized in that: The two sides of the interior of the mounting frame (1) are respectively fixedly connected to hinge shafts 2 (10), the hinge shafts 2 (10) are respectively hinged to the folding assembly (7), the middle part of the folding assembly (7) is rotatably connected to the transmission shaft (6), one side of the transmission shaft (6) is hinged to hinge seat 2 (5), the hinge seat 2 (5) is fixedly connected to one end of the electric telescopic rod (4), the other end of the electric telescopic rod (4) is fixedly connected to hinge seat 1 (3), the hinge seat 1 (3) is hinged to a cylindrical pin (2), and the cylindrical pin (2) is fixedly connected to an outer wall of one side of the mounting frame (1); One end of the folding assembly (7) away from the mounting frame (1) is rotatably connected to a hinge shaft (81), and the hinge shaft (81) is fixedly mounted on both sides of the interior of the connecting frame (8), and a rotor (9) is fixedly mounted on one end of the connecting frame (8).

2. The foldable wing structure of a UAV according to claim 1, characterized in that: The opening of the mounting frame (1) is larger than the opening of the connecting frame (8), and mounting holes (101) are provided through both sides of the mounting frame (1).

3. The foldable wing structure of a UAV according to claim 1, characterized in that: The mounting frame (1) and the connecting frame (8) are both of U-shaped structures.

4. The foldable wing structure of a UAV according to claim 1, characterized in that: The folding assembly (7) comprises a transmission link rod 1 (71), a short link rod 1 (72), a supporting link rod (73), a short link rod 2 (74), and a transmission link rod 2 (75); one end of the transmission link rod 1 (71) is hinged to an articulated shaft 2 (10); the other end of the transmission link rod 1 (71) is hinged to one side of the transmission shaft (6); the other side of the transmission shaft (6) is hinged to one end of the short link rod 2 (74); the other end of the short link rod 2 (74) is hinged to one side of the transmission link rod 2 (75); one end of the transmission link rod 2 (75) is hinged to another articulated shaft 2 (10); the other end of the transmission link rod 2 (75) is hinged to an articulated shaft 1 (81).

5. The foldable wing structure of a UAV according to claim 4, characterized in that: A short link one (72) is provided between the transmission link one (71) and the short link two (74), one end of the short link one (72) is hinged to the transmission shaft (6), the other end of the short link one (72) is hinged to one side of the support link (73), and the two ends of the support link (73) are respectively sleeved on the hinge shaft one (81).

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