A bionic butterfly mechanical structure

Abstract

The utility model relates to bionic butterfly device technical field especially, more particularly to a kind of bionic butterfly mechanical structure, including torso power structure and the left wing structure and right wing structure being set in its both sides, torso power structure and left wing structure, right wing structure form bionic butterfly, the utility model is formed by the setting position between two groups of swing arm angle, can reduce air resistance in flight process, wing forms the inclination angle swing process can more efficiently cut air, when swinging downward, inclination angle can increase the acting area of wing and air, similar to more strong lift generated by rowing, when swinging upward, adjusting inclination angle can reduce air resistance, compared with up and down horizontal swing more close to natural butterfly flight mode, overall improve bionic butterfly energy utilization rate, and adopt modularization installation, avoid the whole bionic body scrapping due to local problem, improve the overall service life of equipment, structure is small and exquisite, to reach bionic butterfly efficient flight purpose.

Description

Technical Field

[0001] This utility model relates to the field of biomimetic butterfly device technology, and in particular to a biomimetic butterfly mechanical structure. Background Technology

[0002] A biomimetic butterfly mechanical structure is a mechanical system designed to mimic the shape, flight posture, and movement principle of a butterfly in nature, achieving butterfly-like flight or movement functions. It mainly consists of a power component and wing structures on both sides.

[0003] Most current biomimetic butterfly wings employ a symmetrically arranged horizontal swing arm design, with the swing arms moving in a near-horizontal up-and-down swinging motion. While this structure achieves the basic flapping motion of the wings, it still has significant drawbacks. During the up-and-down swinging motion, the overall interaction with the air is relatively simple. When swinging downwards, it cannot increase the effective contact area through tilt angle, relying solely on the wing plane to directly push the air, resulting in low lift generation efficiency. When swinging upwards, the wings still cut through the air with a large frontal area, leading to a significant increase in air resistance and consuming a large amount of additional driving energy, resulting in low energy utilization. At the same time, the symmetrical layout of the horizontal swing arms makes it easy to form vortex interference during wing movement, further exacerbating air resistance. It is difficult to simulate the efficient "rowing" lift generation characteristics of natural butterflies through changes in tilt angle. Furthermore, existing biomimetic butterflies mostly use an integrated mechanical structure. Once the wings or transmission components are partially damaged (such as wing membrane tearing or swing arm jamming), the entire biomimetic body needs to be disassembled or even replaced, increasing costs. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a biomimetic butterfly mechanical structure. It solves the problems of existing biomimetic butterflies, where the symmetrically arranged horizontal swing arms of most existing wing-driven structures fail to simulate the efficient lift generated by the butterfly's wings through angled movements, similar to paddling. Furthermore, existing biomimetic butterflies often employ integrated mechanical structures, making it difficult to replace damaged parts and increasing costs. This new design achieves a more natural butterfly flight pattern, improves the overall energy utilization of the biomimetic butterfly, avoids the failure of the entire biomimetic body due to localized problems, and extends the overall lifespan of the device.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a biomimetic butterfly mechanical structure, including a trunk power structure and a left wing structure and a right wing structure arranged on both sides thereon, the trunk power structure, the left wing structure, and the right wing structure form a biomimetic butterfly. The trunk power structure includes a mounting frame and a fixed bracket fixed at its end. The mounting frame is symmetrically arranged on both sides with transmission components that drive the left wing structure and the right wing structure to swing. The transmission components include a drive wheel rotatably mounted at the rear end of the fixed bracket, and two sets of swing arms located at the rear end of the two sets of drive wheels and rotatably connected to the fixed bracket. The two sets of swing arms are angled together and have strip grooves opened inside along their own length direction. An eccentric shaft that slides along the inside of the strip groove is fixedly mounted on the outer wall of the drive wheel. Both sets of swing arms have a mounting arm that is detachably connected to the left wing structure and the right wing structure, fixedly installed at one end of the outward extension.

[0006] Preferably, a micro motor is fixedly installed on both sides of the front end of the fixed bracket, and a reduction gearbox is provided inside the fixed bracket to reduce the power of the micro motor and transmit it to the drive wheel.

[0007] Preferably, the left wing structure and the right wing structure are composed of the same components. The left wing structure includes two sets of main wing skeletons and two sets of multiple secondary ribs arranged vertically on both sides of the trunk power structure. The two sets of main wing skeletons form a frame outline that corresponds to the outline shape of the left wing structure and the right wing structure.

[0008] Preferably, multiple secondary ribs are crisscrossed and fixedly installed inside the main wing frame, and a wing membrane is fixedly installed between the two sets of main wing frames on one side.

[0009] Preferably, both the main wing frame and the secondary ribs are made of arc-shaped tubes, and the diameter of the main wing frame tube is larger than that of the secondary rib tube.

[0010] Preferably, a light strip is fixedly installed inside the main wing frame tube.

[0011] Preferably, a frame bearing is fixedly installed at the bottom end of the connection side between the main wing frame and the mounting arm, and a mounting block that fits against one side of the mounting arm is fixedly installed at the bottom of the frame bearing. A battery assembly that supplies power to the light strip inside the main wing frame tube is fixedly installed at the bottom of the mounting block.

[0012] Preferably, both the mounting block and the mounting arm have multiple sets of corresponding threaded holes inside, and expansion bolts are threaded into the internal parts of the threaded holes.

[0013] By employing the above technical solution, this utility model provides a biomimetic butterfly mechanical structure, which has at least the following beneficial effects: 1. This utility model forms an angle between the positions of the two sets of swing arms. During the swinging process, when swinging downwards, the leading edge of the wings tilts slightly downwards and the trailing edge curves upwards, forming an angle of attack similar to that of an aircraft wing. When swinging upwards, the wings tilt in the opposite direction or fold in, reducing air resistance. The wings can cut the air more efficiently during the tilting swing. When swinging downwards, the tilt angle can increase the contact area between the wings and the air, similar to paddling water to generate stronger lift. When swinging upwards, adjusting the tilt angle can reduce air resistance. Compared with horizontal swinging, it is closer to the flight mode of butterflies in nature, and improves the overall energy utilization rate of biomimetic butterflies.

[0014] 2. By detaching the wing structure from the body structure, this utility model allows for the overall separation of the wing structure from the body transmission structure, facilitating the disassembly, storage, and carrying of the bionic butterfly. It also allows for individual disassembly and replacement, preventing the entire bionic body from being scrapped due to local problems and extending the overall service life of the device. In addition, the main wing skeleton and multiple secondary ribs can reduce the occurrence of local deformation in the wing structure and improve the bending resistance through structural support while reducing weight. Attached Figure Description

[0015] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0016] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the connection structure between the transmission component and the two sets of wing structures of this utility model; Figure 3 This is a schematic diagram of the torso dynamic structure of this utility model; Figure 4 This is a schematic diagram of the torso dynamic explosion structure of this utility model; Figure 5 This is a schematic diagram of the left wing structure of this utility model; Figure 6 This is a schematic diagram showing the up-and-down swinging motion of this utility model; Figure 7 This is an internal sectional view of the main wing frame of this utility model.

[0017] Figure: 1. Torso power structure; 11. Mounting frame; 12. Fixing bracket; 2. Left wing structure; 21. Main wing frame; 22. Secondary ribs; 23. Wing membrane; 3. Right wing structure; 4. Swing arm; 41. Strip groove; 42. Mounting arm; 43. Threaded hole; 5. Drive wheel; 51. Eccentric shaft; 6. Mounting block; 61. Expansion bolt; 7. Reduction gearbox; 71. Micro motor; 8. Frame bearing; 9. Battery assembly. Detailed Implementation

[0018] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1 Addressing the challenges of existing biomimetic butterfly designs that rely on symmetrically arranged horizontally oscillating wing drive structures, which fail to mimic the efficient lift generated by natural butterfly wings through angled strokes, and the costly integrated mechanical structures of many biomimetic butterflies, this embodiment offers a biomimetic butterfly mechanical structure that more closely resembles the flight pattern of natural butterflies. This improves the overall energy utilization of the biomimetic butterfly, prevents the entire biomimetic device from failing due to localized problems, and extends the overall lifespan of the device. Please refer to... Figure 1 - Figure 5 The biomimetic butterfly mechanical structure includes a trunk power structure 1 and a left wing structure 2 and a right wing structure 3 arranged on both sides thereon. The trunk power structure 1, the left wing structure 2, and the right wing structure 3 form a biomimetic butterfly. The trunk power structure 1 includes a mounting frame 11 and a fixed bracket 12 fixed at its end. The mounting frame 11 has symmetrically arranged transmission components on both sides to drive the left wing structure 2 and the right wing structure 3 to swing. The transmission components include drive wheels 5 rotatably mounted on the rear end of the fixed bracket 12. During the rotation of the two sets of wing structures, one end of the swing arm 4 is rotatably connected to the fixed bracket 12, and two sets of swing arms 4 are located at the rear end of the two sets of drive wheels 5 and rotatably connected to the fixed bracket 12. The two sets of swing arms 4 are angled together, with grooves 41 running along their length. This creates an angle between the two sets of swing arms 4. During the swinging process, when swinging downwards, the leading edge of the wings tilts slightly downwards, and the trailing edge curves upwards, forming an angle of attack similar to an aircraft wing. When swinging upwards, the wings tilt in the opposite direction or fold in, reducing air resistance. The angled swinging of the wings allows for more efficient air cutting. The downward tilt increases the contact area between the wings and the air, similar to paddling in water, generating stronger lift. Adjusting the tilt during upward swing reduces air resistance, thus improving overall energy efficiency. Compared to horizontal swinging, this is closer to the natural flight pattern of a butterfly. (See attached diagram for details.) Figure 6An eccentric shaft 51 that slides along the inside of a strip groove 41 is fixedly installed on the outer wall of the drive wheel 5. When the drive wheel 5 rotates, it can drive the eccentric shaft 51 to slide along the inside of the strip groove 41 of the swing arm 4, thereby driving the swing arm 4 to swing up and down. The two sets of wing structures are fixedly connected to the swing arm 4 through corresponding mounting blocks 6. The two sets of transmission components can drive the two sets of wing structures to swing up and down, thereby simulating the flight of butterflies in nature.

[0020] Because the existing two sets of wings, which flap horizontally, bear a large vertical impact force at their roots, they are prone to wing vein damage. By designing the two sets of wings in an inclined manner, the angle of inclination during oblique flapping decomposes part of the impact force into lateral forces along the wing surface, dispersing the load at the wing roots. This better suits the load-bearing characteristics of the wings' physiological structure and extends their service life. Figure 1 - Figure 5 As shown, each of the two sets of swing arms 4 has a mounting arm 42 that is detachably mounted to the left wing structure 2 and the right wing structure 3 at one end of its outward extension. By tilting the mounting position of the two sets of swing arms 4 and forming an angle α between the two sets of swing arms 4, the transmission assembly drives the left wing structure 2 and the right wing structure 3 on both sides to swing at an angle.

[0021] Micro motors 71 are fixedly installed on both sides of the front end of the fixed bracket 12, and a reduction gearbox 7 is provided inside the fixed bracket 12 to reduce the power of the micro motors 71 and transmit it to the drive wheel 5. The cooperation between the micro motors 71 and the reduction gearbox 7 can reduce the power transmitted by the micro motors 71 and increase the torque on the drive wheel 5, so that the drive wheel 5 reaches the required speed and achieves the purpose of driving the drive wheel 5 to rotate.

[0022] Example 2 Based on Embodiment 1, the device further includes a main wing frame 21 and secondary ribs 22 to increase the strength of the left wing structure 2 and the right wing structure 3, such as... Figure 1 - Figure 2 As shown, the left wing structure 2 and the right wing structure 3 are composed of the same components. The left wing structure 2 includes two sets of main wing skeletons 21 and two sets of multiple secondary ribs 22 arranged vertically on both sides of the trunk power structure 1. The two sets of main wing skeletons 21 form a frame outline that corresponds to the outline shape of the left wing structure 2 and the right wing structure 3. Each side consists of two sets of upper and lower main wing skeletons 21, and the two sets of main wing skeletons 21 are fixed along the outer edge of the wing membrane 23. At the same time, multiple secondary ribs 22 are arranged longitudinally and transversely inside the frame formed by the main wing skeletons 21 to effectively support the wing membrane 23. Meanwhile, the multiple secondary ribs 22 have a small diameter. The main skeleton bears the main load, and the secondary ribs 22 disperse the stress, which can reduce the occurrence of local deformation of the wing structure. At the same time, the weight is reduced and the bending resistance is improved through structural support (similar to the wing vein interlayer of insect wings).

[0023] To improve the strength of the two sets of wing membranes 23 during flight and to ensure the flexibility of the butterfly wings, such as Figure 1 - Figure 2 As shown, multiple secondary ribs 22 are crisscrossed and fixed inside the main wing frame 21. A wing membrane 23 is fixedly installed between the two sets of main wing frames 21 on one side. The main wing frame 21 and the multiple secondary ribs 22 are made of carbon fiber material, which enhances the structural stability while reducing the weight. The wing membrane 23 is made of polyvinyl chloride film, which has a certain degree of flexibility and can imitate the flexibility of real butterfly wings.

[0024] While ensuring the structural strength of the wing membrane 23, installing light strips inside the tube can enhance the visual appeal and highlight the aesthetic beauty of the biomimetic butterfly structure, such as... Figure 7 As shown, both the main wing skeleton 21 and the secondary ribs 22 are composed of arc-shaped tubes, and the diameter of the main wing skeleton 21 is larger than that of the secondary ribs 22. A light strip is fixedly installed inside the tube of the main wing skeleton 21. It should be noted that by setting the tube diameter of the main wing skeleton 21 to be large and adopting a hollow design, and fixing the light strip inside the main wing skeleton 21, the fluorescent lines can emit fluorescence in a low-light environment, making the outline of the wing skeleton clearer. Combined with the overall shape of the wings, it can create a dreamy and dynamic visual effect, which is especially suitable for decorative biomimetic butterflies to increase their attractiveness.

[0025] A frame bearing 8 is fixedly installed at the bottom of the connection side between the main wing frame 21 and the mounting arm 42. A mounting block 6 is fixedly installed at the bottom of the frame bearing 8 and fits against one side of the mounting arm 42. A battery assembly 9 for powering the light strip inside the tube diameter of the main wing frame 21 is fixedly installed at the bottom of the mounting block 6, and one end of the light strip is connected to the battery assembly 9, so that the light strip can be powered by the battery assembly 9 to ensure the normal use of the light strip.

[0026] Because bionic wings are high-frequency moving and easily worn components in a bionic system, such as tearing of the wing membrane 23 and deformation of the skeleton, while the torso transmission assembly is relatively more durable, by detachably configuring the two sets of wing structures and the torso power structure 1, the utilization rate of the torso power structure 1 can be improved, facilitating maintenance and replacement. Figure 1 - Figure 5 As shown, multiple sets of corresponding threaded holes 43 are opened inside the mounting block 6 and the mounting arm 42. Expansion bolts 61 are threaded inside the threaded holes 43. When the wing structure is damaged, the expansion bolts 61 can be removed from the mounting block 6 and the mounting arm 42, which facilitates the overall separation of the wing structure and the body power structure 1. This makes it easy to disassemble, store and carry the bionic butterfly as a whole, and it can also be disassembled and replaced individually, avoiding the scrapping of the entire bionic body due to local problems and improving the overall service life of the equipment.

[0027] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A biomimetic butterfly mechanical structure, comprising a trunk power structure (1) and a left wing structure (2) and a right wing structure (3) disposed on both sides thereof, wherein the trunk power structure (1), the left wing structure (2), and the right wing structure (3) form a biomimetic butterfly, characterized in that: The torso power structure (1) includes a mounting frame (11) and a fixed bracket (12) fixed at its end. The mounting frame (11) is symmetrically provided with transmission components that drive the left wing structure (2) and the right wing structure (3) to swing. The transmission components include a drive wheel (5) rotatably mounted at the rear end of the fixed bracket (12) and two sets of swing arms (4) located at the rear end of the two sets of drive wheels (5) and rotatably connected to the fixed bracket (12). The two sets of swing arms (4) are provided with a strip groove (41) inside and along their own length direction. An eccentric shaft (51) that slides along the inside of the strip groove (41) is fixedly mounted on the outer wall of the drive wheel (5). Both sets of swing arms (4) have an outwardly extending end fixedly mounted with a mounting arm (42) that is detachably connected to the left wing structure (2) and the right wing structure (3).

2. The biomimetic butterfly mechanical structure according to claim 1, characterized in that: The fixed bracket (12) has micro motors (71) fixedly installed on both sides of its front end, and the fixed bracket (12) has a reduction gearbox (7) inside which reduces the power of the micro motors (71) and transmits it to the drive wheel (5).

3. The biomimetic butterfly mechanical structure according to claim 1, characterized in that: The left wing structure (2) and the right wing structure (3) are composed of the same components. The left wing structure (2) includes two sets of main wing skeletons (21) and two sets of multiple secondary ribs (22) located on both sides of the trunk power structure (1). The two sets of main wing skeletons (21) form a frame outline that corresponds to the outline shape of the left wing structure (2) and the right wing structure (3).

4. The biomimetic butterfly mechanical structure according to claim 1, characterized in that: Multiple secondary ribs (22) are fixedly installed inside the main wing frame (21) in a crisscross pattern, and a wing membrane (23) is fixedly installed between the two sets of main wing frames (21) on one side.

5. The biomimetic butterfly mechanical structure according to claim 4, characterized in that: The main wing frame (21) and the secondary rib (22) are both made of arc-shaped tubes, and the diameter of the main wing frame (21) is larger than that of the secondary rib (22).

6. The biomimetic butterfly mechanical structure according to claim 5, characterized in that: A light strip is fixedly installed inside the main wing frame (21) tube.

7. The biomimetic butterfly mechanical structure according to claim 6, characterized in that: A frame bearing (8) is fixedly installed at the bottom end of the connection side between the main wing frame (21) and the mounting arm (42). A mounting block (6) is fixedly installed at the bottom of the frame bearing (8) and fits against one side of the mounting arm (42). A battery assembly (9) for powering the light strip inside the main wing frame (21) is fixedly installed at the bottom of the mounting block (6).

8. The biomimetic butterfly mechanical structure according to claim 7, characterized in that: The mounting block (6) and the mounting arm (42) both have multiple sets of corresponding threaded holes (43) inside, and expansion bolts (61) are threaded inside the threaded holes (43).

Images