A bionic butterfly

By using a double gear reduction and eccentric gear transmission system, combined with electromagnetic rudder control, the problems of excessive weight and complex structure of the bionic butterfly have been solved, achieving lightweight and efficient flight control.

CN224311994UActive Publication Date: 2026-06-02山西工学院
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
山西工学院
Filing Date
2025-05-23
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The small size of biomimetic butterflies makes it impossible to carry large batteries, resulting in excessive weight, complex structure, and difficulty in achieving lightweight design.

Method used

It adopts a double gear reduction and eccentric gear transmission system, an integrated electronic control design, and uses electromagnetic rudders to control the flight direction, simplifying the structure and reducing weight.

Benefits of technology

It achieves efficient flight control, reduces manufacturing costs and weight, simplifies the structure, and facilitates modular design and rapid replacement and upgrades.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a biomimetic butterfly, including a transmission device, a power device, a first wing, and a second wing. The transmission device is connected to the power device, and a connecting piece is provided on the transmission device. The transmission device hinges the first wing and the second wing respectively through the connecting piece. This utility model achieves the function of controlling the regular up-and-down movement of two rocker arms with a single motor by using double gear reduction and eccentric gears, thereby reducing manufacturing costs. At the same time, gear transmission has the characteristics of high efficiency, low friction, and low wasted work. The flight direction is controlled by electromagnetic rudders and rudder blades, simplifying the overall structure. The integrated electronic control integrates the ESC and signal receiver into a single flight control board, reducing the number of wires used. The integrated design also features stable quality, small size, and modularity, facilitating rapid replacement and upgrades of parts.
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Description

Technical Field

[0001] This utility model belongs to the field of bionic technology, and in particular relates to a bionic butterfly. Background Technology

[0002] Bionic butterflies can be used in everyday life for creating atmosphere, teaching, environmental monitoring, and other fields, demonstrating high practicality. However, due to their small size, bionic butterflies cannot carry large batteries; therefore, reducing overall weight and simplifying the structure are among the key technical challenges that need to be addressed. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a biomimetic butterfly.

[0004] This utility model is achieved through the following technical solution.

[0005] This utility model provides a biomimetic butterfly, including a transmission device, a power device, a first wing, and a second wing. The transmission device is connected to the power device, and a connecting piece is provided on the transmission device. The transmission device hinges the first wing and the second wing respectively through the connecting piece.

[0006] Preferably, the transmission device includes a frame and a gear set. The frame is connected to a power device. A swing arm is provided on the frame. The swing arm is connected to a connecting plate. The swing arm is connected to the gear set through a connecting rod. The swing arm is rotatably connected to the connecting rod through a first pin. The swing arm is rotatably connected to the frame through a second pin.

[0007] Preferably, the gear set includes a first eccentric gear, a second eccentric gear, and a double gear. The first eccentric gear and the second eccentric gear are respectively connected to a connecting rod and mesh with the second eccentric gear. A third gear is coaxially arranged on the double gear and meshes with the first eccentric gear. The first eccentric gear, the second eccentric gear, and the double gear are rotatably connected to the frame.

[0008] Preferably, the first eccentric gear and the second eccentric gear are rotatably connected to the frame via a third pin, and the double gear is rotatably connected to the frame via a fourth pin.

[0009] Preferably, the power unit includes a support rod, a motor, an electromagnetic rudder assembly, and a power and control assembly. The support rod is connected to the frame, the motor is connected to the frame, and the support rod is connected to both the electromagnetic rudder assembly and the power and control assembly.

[0010] Preferably, the electromagnetic rudder assembly includes an electromagnetic rudder mount and an electromagnetic rudder, with the top of the electromagnetic rudder mount connected to a support rod and the lower part of the electromagnetic rudder mount connected to the electromagnetic rudder.

[0011] Preferably, the electromagnetic rudder is provided with rudder blades, and the rudder blades are rotatably connected to the electromagnetic rudder via a shaft.

[0012] Preferably, the power and control components include a battery mount, a battery, and a flight control board. The battery mount is connected to a support rod, the top of the battery is connected to the battery mount, and the battery is connected to the flight control board.

[0013] Preferably, a motor gear is provided on the output shaft of the motor, and the motor gear meshes with a double gear.

[0014] The beneficial effects of this utility model are as follows:

[0015] This invention utilizes a double-gear reduction system and an eccentric gear to achieve the function of controlling two rocker arms to move up and down in a regular pattern using a single motor, thereby reducing manufacturing costs. Simultaneously, the gear transmission system features high efficiency and low friction and wasted energy. Flight direction is controlled by electromagnetic rudders and rudder blades, simplifying the overall structure. The integrated electronic control system integrates the ESC and signal receiver into a single flight control board, reducing the number of wires used. Furthermore, the integrated design offers advantages such as stable quality, small size, and modularity, facilitating rapid replacement and upgrades of components, and enabling lightweight design similar to that of a biomimetic butterfly. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a structural schematic diagram of the transmission device and power device of this utility model;

[0018] Figure 3 This is a side view of the transmission device of this utility model;

[0019] Figure 4 This is a schematic diagram of the main structure of the transmission device of this utility model;

[0020] In the diagram: 1-Transmission device, 2-Power unit, 3-First wing, 4-Second wing, 101-Connecting piece, 102-First pin, 103-Swing arm, 104-Second pin, 105-Frame, 106-Connecting rod, 107-Third pin, 109-First eccentric gear, 110-Double gear, 111-Fourth pin, 112-Motor gear, 113-Second eccentric gear, 114-Third gear, 201-Support rod, 202-Motor, 203-Electromagnetic rudder mount, 204-Battery mount, 205-Battery, 206-Rudder blade, 207-Electromagnetic rudder. Detailed Implementation

[0021] The technical solution of this utility model is further described below, but the scope of protection is not limited to what is described.

[0022] Example:

[0023] like Figures 1 to 4 As shown, a biomimetic butterfly includes a transmission device 1, a power device 2, a first wing 3 and a second wing 4. The transmission device 1 is connected to the power device 2. A connecting piece 101 is provided on the transmission device 1. The transmission device 1 is hinged to the first wing 3 and the second wing 4 through the connecting piece 101.

[0024] The transmission device 1 includes a frame 105 and a gear set. The frame 105 is connected to the power device 2. A swing arm 103 is provided on the frame 105. Two swing arms 103 are symmetrically arranged. The swing arm 103 is connected to the connecting piece 101. The swing arm 103 is connected to the gear set through the connecting rod 106. The swing arm 103 is rotatably connected to the connecting rod 106 through the first pin 102. The swing arm 103 is rotatably connected to the frame 105 through the second pin 104.

[0025] The gear set includes a first eccentric gear 109, a second eccentric gear 113, and a double gear 110. The first eccentric gear 109 and the second eccentric gear 113 are respectively connected to the connecting rod 106. The first eccentric gear 109 meshes with the second eccentric gear 113. A third gear 114 is coaxially arranged on the double gear 110. The third gear 114 meshes with the first eccentric gear 109. The first eccentric gear 109, the second eccentric gear 113, and the double gear 110 are rotatably connected to the frame 105.

[0026] The first eccentric gear 109 and the second eccentric gear 113 are rotatably connected to the frame 105 via the third pin 107, and the double gear 110 is rotatably connected to the frame 105 via the fourth pin 111.

[0027] The power unit 2 includes a support rod 201, a motor 202, an electromagnetic rudder assembly, and a power and control assembly. The support rod 201 is connected to the frame 105, and the motor 202 is also connected to the frame 105. The support rod 201 is connected to both the electromagnetic rudder assembly and the power and control assembly. The support rod 201 has a square cross-section to prevent rotation of the frame 105, electromagnetic rudder pylon 203, and battery pylon 204 during flight.

[0028] The electromagnetic rudder assembly includes an electromagnetic rudder mount 203 and an electromagnetic rudder 207. The top of the electromagnetic rudder mount 203 is connected to a support rod 201, and the lower part of the electromagnetic rudder mount 203 is connected to the electromagnetic rudder 207.

[0029] The electromagnetic rudder 207 is provided with a rudder plate 206, and the rudder plate 206 is rotatably connected to the electromagnetic rudder 207 via a shaft.

[0030] The power and control components include a battery mount 204, a battery 205, and a flight control board. The battery mount 204 is connected to a support rod 201, the top of the battery 205 is connected to the battery mount 204, and the battery 205 is connected to the flight control board. The flight control board is electrically connected to the battery 205, the motor 202, and the electromagnetic rudder 207, respectively. The flight control board can control the operation of the motor 202 and the electromagnetic rudder 207, which are each electrically connected to the battery 205.

[0031] The motor 202 has a motor gear 112 on its output shaft, and the motor gear 112 meshes with the double gear 110.

[0032] The frame 105, support rod 201, electromagnetic rudder gantry 203, and battery gantry 204 can be made of carbon fiber, reducing the overall weight.

[0033] Working principle:

[0034] The electromagnetic rudder 207 drives the rudder blade 206 to swing left and right, changing the airflow direction and achieving the turning of the biomimetic butterfly.

[0035] The motor 202 transmits power to the motor gear 112, the motor gear 112 transmits power to the double gear 110, the double gear 110 transmits power to the first eccentric gear 109 through the third gear 114, and the first eccentric gear 109 transmits power to the second eccentric gear 113.

[0036] The rotation of the first eccentric gear 109 and the second eccentric gear 113 drives the connecting rod 106 to reciprocate up and down, which in turn pushes the rocker arm 103 to swing up and down, making a flapping motion (double crank rocker mechanism). The flapping force is transmitted to the first wing 3 and the second wing 4 through the connecting piece 101 to make a flapping motion, generating an upward lift and a forward thrust, simulating the flapping behavior of a butterfly, and realizing the butterfly's flight.

[0037] The bionic butterfly uses the FlySky2A flight controller, which is wirelessly connected to the FlySky i6X remote controller to control the bionic butterfly.

Claims

1. A biomimetic butterfly, characterized in that: It includes a transmission device (1), a power device (2), a first wing (3) and a second wing (4). The transmission device (1) is connected to the power device (2). A connecting piece (101) is provided on the transmission device (1). The transmission device (1) is hinged to the first wing (3) and the second wing (4) through the connecting piece (101). The transmission device (1) includes a frame (105) and a gear set. The frame (105) is connected to the power device (2). A swing arm (103) is provided on the frame (105). The swing arm (103) is connected to the connecting piece (101). The swing arm (103) is connected to the gear set through the connecting rod (106). The swing arm (103) is rotatably connected to the connecting rod (106) through the first pin (102). The swing arm (103) is rotatably connected to the frame (105) through the second pin (104). The power unit (2) includes a support rod (201), a motor (202), an electromagnetic rudder assembly, and a power and control assembly. The support rod (201) is connected to the frame (105), the motor (202) is connected to the frame (105), and the support rod (201) is connected to the electromagnetic rudder assembly and the power and control assembly respectively.

2. The biomimetic butterfly as described in claim 1, characterized in that: The gear set includes a first eccentric gear (109), a second eccentric gear (113), and a double gear (110). The first eccentric gear (109) and the second eccentric gear (113) are connected to the connecting rod (106) respectively. The first eccentric gear (109) meshes with the second eccentric gear (113). A third gear (114) is coaxially arranged on the double gear (110). The third gear (114) meshes with the first eccentric gear (109). The first eccentric gear (109), the second eccentric gear (113), and the double gear (110) are rotatably connected to the frame (105) respectively.

3. The biomimetic butterfly as described in claim 2, characterized in that: The first eccentric gear (109) and the second eccentric gear (113) are rotatably connected to the frame (105) via the third pin (107), and the double gear (110) is rotatably connected to the frame (105) via the fourth pin (111).

4. The biomimetic butterfly as described in claim 1, characterized in that: The electromagnetic rudder assembly includes an electromagnetic rudder mount (203) and an electromagnetic rudder (207). The top of the electromagnetic rudder mount (203) is connected to a support rod (201), and the lower part of the electromagnetic rudder mount (203) is connected to the electromagnetic rudder (207).

5. A biomimetic butterfly as described in claim 4, characterized in that: The electromagnetic rudder (207) is provided with a rudder blade (206), and the rudder blade (206) and the electromagnetic rudder (207) are rotatably connected by a shaft.

6. A biomimetic butterfly as described in claim 1, characterized in that: The power and control components include a battery mount (204), a battery (205), and a flight control board. The battery mount (204) is connected to a support rod (201), the top of the battery (205) is connected to the battery mount (204), and the battery (205) is connected to the flight control board.

7. A biomimetic butterfly as described in claim 1, characterized in that: A motor gear (112) is provided on the output shaft of the motor (202), and the motor gear (112) meshes with a double gear (110).