Mechanical structure of a robotic eyebrow portion
By using the drive components and flexible eyebrow frame design of the robotic eyebrow mechanism, the problem of robotic eyebrows being unable to convey complex emotions has been solved, increasing the realism of facial expressions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU MENGWU INTELLIGENT TECHNOLOGY CO LTD
- Filing Date
- 2025-09-08
- Publication Date
- 2026-07-24
Smart Images

Figure CN224544622U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of robotics, and in particular to a mechanical structure for the eyebrow part of a robot. Background Technology
[0002] A robot is a device that integrates multiple disciplines such as electromechanics, mechanics, materials science, and bionics. It identifies targets and performs certain specific functions through setting or control. Robot eyebrows are components in a robot's facial expression system used to simulate the shape and movement of human eyebrows and assist in conveying emotions.
[0003] In existing technologies, most robot eyebrows can only perform simple basic movements such as "raising", "drooping" and "flattening", making it difficult to replicate the subtle shape changes of human eyebrows, and difficult to accurately convey complex emotions. This makes the expressions appear mechanical and lack realism, resulting in robot expressions being monotonous and stiff. Utility Model Content
[0004] The purpose of this invention is to provide a mechanical structure for the eyebrows of a robot, in order to solve the problem mentioned in the background art that it is difficult to accurately convey complex emotions, making expressions appear mechanical and lacking in realism, resulting in robot expressions being monotonous and stiff.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: including a robot head, wherein the robot head is provided with a robot eyebrow mechanism, the robot eyebrow mechanism including a driving component, a first driving crank, a first rotating connecting rod, a first rotating frame, a second driving crank, a second rotating connecting rod, a second rotating frame, and a flexible eyebrow frame.
[0006] In a preferred embodiment, the outer output ends on both sides of the drive member are fixedly connected to one end of the first drive crank, and the other end of the first drive crank is rotatably connected to one side of the first rotating connecting rod via a rotating shaft.
[0007] In a preferred embodiment, the outer sides of both sides of the drive component are rotatably connected to one end of the first rotating frame via a rotating shaft, and the first rotating frame is located above the first drive crank.
[0008] In a preferred embodiment, the other end of the first rotating frame is rotatably connected to one side of the first rotating connecting rod via a rotating shaft, and the inner output ends on both sides of the driving member are fixedly connected to one end of the second driving crank.
[0009] In a preferred embodiment, the inner sides of both sides of the drive member are rotatably connected to one end of the second rotating connecting rod via a rotating shaft, and the second rotating connecting rod is located above the second drive crank.
[0010] In a preferred embodiment, the other end of the second drive crank is rotatably connected to one side of the second rotating frame via a rotating shaft, and the other end of the second rotating connecting rod is rotatably connected to one side of the second rotating frame via a rotating shaft.
[0011] In a preferred embodiment, the bottom of the first rotating link is rotatably connected to one end of the flexible eyebrow frame via a rotating shaft, and the bottom of the second rotating frame is rotatably connected to the other end of the flexible eyebrow frame via a rotating shaft.
[0012] In a preferred embodiment, the middle section of the flexible eyebrow frame is designed to be wavy.
[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0014] 1. This utility model utilizes a driving component to rotate a first driving crank and a second driving crank. The rotation of the first driving crank causes a first rotating connecting rod to rotate, which in turn causes a first rotating frame to rotate outside the driving component. As the first rotating connecting rod rotates, one end of the flexible eyebrow frame connected to it moves. The rotation of the second driving crank causes the second rotating frame to rotate, which in turn causes a second rotating connecting rod to rotate inside the driving component. As the second rotating frame rotates, one end of the flexible eyebrow frame connected to it moves. Through the rotation and movement of both ends of the flexible eyebrow frame and its flexible design, facial expressions can be imitated. The movement of both ends of the flexible eyebrow frame and its flexible design facilitate the robot's ability to imitate more complex emotions, increasing the realism of the robot's expressions. Attached Figure Description
[0015] Figure 1 A schematic diagram of the mechanical structure of a robot eyebrow part provided by this utility model;
[0016] Figure 2 A schematic diagram of a robot eyebrow mechanism, which provides a mechanical structure for the robot eyebrow part of this utility model;
[0017] Figure 3 A schematic diagram of a flexible eyebrow frame, which is part of the mechanical structure of a robot eyebrow, provided by this utility model.
[0018] Legend:
[0019] 1. Robot head; 2. Robot eyebrow mechanism; 201. Drive component; 202. First drive crank; 203. First rotating link; 204. First rotating frame; 205. Second drive crank; 206. Second rotating link; 207. Second rotating frame; 208. Flexible eyebrow frame. Detailed Implementation
[0020] 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.
[0021] Please see Figures 1-3 The present invention provides a technical solution comprising: a robot head 1, wherein a robot eyebrow mechanism 2 is provided inside the robot head 1, the robot eyebrow mechanism 2 comprising a drive component 201, a first drive crank 202, a first rotating connecting rod 203, a first rotating frame 204, a second drive crank 205, a second rotating connecting rod 206, a second rotating frame 207, and a flexible eyebrow frame 208.
[0022] In one embodiment, the outer output ends on both sides of the drive member 201 are fixedly connected to one end of the first drive crank 202, and the other end of the first drive crank 202 is rotatably connected to one side of the first rotating connecting rod 203 through a rotating shaft. The outer sides on both sides of the drive member 201 are rotatably connected to one end of the first rotating frame 204 through a rotating shaft, and the first rotating frame 204 is located above the first drive crank 202.
[0023] Specifically: the rotation of the first drive crank 202 causes the first rotating connecting rod 203 to rotate, the rotation of the first rotating connecting rod 203 causes the first rotating frame 204 to rotate on the outside of the drive member 201, and the rotation of the first rotating connecting rod 203 causes the flexible eyebrow frame 208 to move at one end connected to the first rotating connecting rod 203.
[0024] In one embodiment, the other end of the first rotating frame 204 is rotatably connected to one side of the first rotating connecting rod 203 via a rotating shaft. The inner output ends on both sides of the driving member 201 are fixedly connected to one end of the second driving crank 205. The inner sides on both sides of the driving member 201 are rotatably connected to one end of the second rotating connecting rod 206 via a rotating shaft. The second rotating connecting rod 206 is located above the second driving crank 205. The other end of the second driving crank 205 is rotatably connected to one side of the second rotating frame 207 via a rotating shaft. The other end of the second rotating connecting rod 206 is rotatably connected to one side of the second rotating frame 207 via a rotating shaft. The bottom of the first rotating connecting rod 203 is rotatably connected to one end of the flexible eyebrow frame 208 via a rotating shaft. The bottom of the second rotating frame 207 is rotatably connected to the other end of the flexible eyebrow frame 208 via a rotating shaft. The middle section of the flexible eyebrow frame 208 is wavy.
[0025] Specifically: the second drive crank 205 rotates, causing the second rotating frame 207 to rotate. The rotation of the second rotating frame 207 causes the second rotating connecting rod 206 to rotate inside the drive member 201. As the second rotating frame 207 rotates, the flexible eyebrow frame 208 is moved at one end connected to the second rotating frame 207. Through the rotation of both ends of the flexible eyebrow frame 208 and its flexible design, facial expressions can be imitated. The movement of both ends of the flexible eyebrow frame 208 and its flexible design make it easier for the robot to imitate more complex emotions, increasing the realism of the robot's expressions.
[0026] Working principle: The drive component 201 drives the first drive crank 202 and the second drive crank 205 to rotate. The rotation of the first drive crank 202 drives the first rotating connecting rod 203 to rotate. The rotation of the first rotating connecting rod 203 drives the first rotating frame 204 to rotate on the outside of the drive component 201. As the first rotating connecting rod 203 rotates, the end of the flexible eyebrow frame 208 connected to the first rotating connecting rod 203 moves. The rotation of the second drive crank 205 drives the second rotating frame 207 to rotate. The rotation of the second rotating frame 207 drives the second rotating connecting rod 206 to rotate on the inside of the drive component 201. As the second rotating frame 207 rotates, the end of the flexible eyebrow frame 208 connected to the second rotating frame 207 moves. Through the rotation and movement of both ends of the flexible eyebrow frame 208 and the flexible setting of the flexible eyebrow frame 208, facial expressions are imitated.
[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A mechanical structure for the eyebrow part of a robot, characterized in that, include: The robot head (1) is provided with a robot eyebrow mechanism (2) inside the robot head (1). The robot eyebrow mechanism (2) includes a drive component (201), a first drive crank (202), a first rotating link (203), a first rotating frame (204), a second drive crank (205), a second rotating link (206), a second rotating frame (207), and a flexible eyebrow frame (208).
2. The mechanical structure of a robot eyebrow section according to claim 1, characterized in that: The outer output ends on both sides of the drive unit (201) are fixedly connected to one end of the first drive crank (202), and the other end of the first drive crank (202) is rotatably connected to one side of the first rotating connecting rod (203) through a rotating shaft.
3. The mechanical structure of a robot eyebrow section according to claim 2, characterized in that: The outer sides of both sides of the drive component (201) are rotatably connected to one end of the first rotating frame (204) via a rotating shaft. The first rotating frame (204) is located above the first drive crank (202).
4. The mechanical structure of a robot eyebrow section according to claim 3, characterized in that: The other end of the first rotating frame (204) is rotatably connected to one side of the first rotating connecting rod (203) via a rotating shaft, and the inner output ends on both sides of the driving member (201) are fixedly connected to one end of the second driving crank (205).
5. The mechanical structure of a robot eyebrow section according to claim 4, characterized in that: The inner sides of both sides of the drive member (201) are rotatably connected to one end of the second rotating connecting rod (206) via a rotating shaft. The second rotating connecting rod (206) is located above the second drive crank (205).
6. The mechanical structure of a robot eyebrow section according to claim 5, characterized in that: The other end of the second drive crank (205) is rotatably connected to one side of the second rotating frame (207) via a rotating shaft, and the other end of the second rotating connecting rod (206) is rotatably connected to one side of the second rotating frame (207) via a rotating shaft.
7. The mechanical structure of a robot eyebrow portion according to claim 6, characterized in that: The bottom of the first rotating link (203) is rotatably connected to one end of the flexible eyebrow frame (208) via a rotating shaft, and the bottom of the second rotating frame (207) is rotatably connected to the other end of the flexible eyebrow frame (208) via a rotating shaft.
8. The mechanical structure of a robot eyebrow section according to claim 7, characterized in that: The middle section of the flexible eyebrow frame (208) is designed to be wavy.