Mechanical structure of a robotic mouth

CN224751349UActive Publication Date: 2026-09-15SUZHOU MENGWU INTELLIGENT TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202521921054.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-08
Publication Date
2026-09-15
Estimated Expiration
2035-09-08

AI Technical Summary

Benefits of technology

[0013] 1. This utility model uses a servo motor to drive a crank to rotate. The crank and connecting rod are connected by a connecting rod, which causes the connecting rod to follow the movement. This movement drives a rocker arm mounted on the connecting rod at the other end of the connecting rod. The rocker arm at the other end of the rocker arm, mounted on the connecting rod, opens and closes the jaw. The cooperation between the crank, connecting rod, and rocker arm makes the opening and closing of the robot's mouth more natural, thus improving the device.

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Abstract

The utility model provides a kind of mechanical structure of robot mouth, it is related to robot field, comprising: robot head, the surface of the robot head is equipped with upper jaw, the bottom of the robot head is equipped with lower jaw, the surface of the robot head is provided with driving assembly, the inner wall of lower jaw is installed in one end of rocker one by connecting rod.The utility model, start rudder one drives lower jaw installed in other end of rocker one to carry out opening and closing operation, make the opening and closing of robot mouth more natural by the cooperation between crank one, connecting rod and rocker one, start rudder three drives crank three other end installed mouth corner control rod, control robot mouth corner action, start rudder two drives crank two other end installed rocker two, the surface of mouth corner control rod is installed in other end of rocker two by connecting rod, by the restriction of rocker two auxiliary, mouth corner control rod can better control robot mouth corner.
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Description

Technical Field

[0001] This utility model relates to the field of robotics technology, and in particular to a mechanical structure for a robot's mouth. Background Technology

[0002] A robot is a machine device capable of automatically executing pre-set programs or autonomously completing tasks driven by artificial intelligence. It typically possesses functions such as perception, decision-making, and execution to replace or assist humans in performing specific tasks. Humanoid robots, by mimicking human appearance and movements, possess more complex interactive capabilities, such as robots used in scientific research or high-end service scenarios. In existing technologies, robots tend to appear stiff and unnatural when simulating the opening and closing of a human's mouth during speech. Utility Model Content

[0003] The purpose of this invention is to provide a mechanical structure for a robot's mouth to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a mechanical structure for a robot mouth, comprising: a robot head, wherein an upper jaw is mounted on the surface of the robot head, a lower jaw is mounted on the bottom of the robot head, and a drive assembly is provided on the surface of the robot head, the drive assembly comprising a servo motor, a crank, a connecting rod, and a rocker arm, one end of the rocker arm being mounted on the inner wall of the lower jaw via a connecting rod.

[0005] In a preferred embodiment, the surface of the servo motor is mounted on the surface of the robot head, one end of the crank is mounted on the output end of the servo motor, one end of the connecting rod is mounted on the other end of the crank via a connecting rod, and the other end of the rocker arm is mounted on the other end of the connecting rod via a connecting rod.

[0006] In a preferred embodiment, servo motors are installed on both sides of the robot's head, and cranks are installed at the output ends of the servo motors. A rocker arm is installed at the other end of the cranks via a connecting rod.

[0007] In a preferred embodiment, servo motors are installed on both sides of the robot's head. A crank is installed at the output end of the servo motor. A mouth control rod is installed at the other end of the crank via a connecting rod. The other end of the rocker arm is installed on the surface of the mouth control rod via a connecting rod.

[0008] In a preferred embodiment, a servo motor four is installed on both sides of the upper jaw, a crank four is installed at the output end of the servo motor four, and a mouth control plate one is installed at the other end of the crank four via a connecting rod.

[0009] In a preferred embodiment, a rocker arm three is mounted on the surface of the mouth control piece one via a connecting rod, and the other end of the rocker arm three is mounted on the surface of the palate via a connecting rod.

[0010] In a preferred embodiment, a servo motor 5 is installed on both sides of the lower jaw, a crank 5 is installed at the output end of the servo motor 5, and a mouth control plate 2 is installed at the other end of the crank 5 via a connecting rod.

[0011] In a preferred embodiment, a rocker arm four is mounted on the surface of the mouth control piece two via a connecting rod, and the other end of the rocker arm four is mounted on the surface of the lower jaw via a connecting rod.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. This utility model uses a servo motor to drive a crank to rotate. The crank and connecting rod are connected by a connecting rod, which causes the connecting rod to follow the movement. This movement drives a rocker arm mounted on the connecting rod at the other end of the connecting rod. The rocker arm at the other end of the rocker arm, mounted on the connecting rod, opens and closes the jaw. The cooperation between the crank, connecting rod, and rocker arm makes the opening and closing of the robot's mouth more natural, thus improving the device.

[0014] 2. In this utility model, starting the servo motor three drives the crank three to rotate the corner mouth control lever, thereby controlling the movement of the robot's corner mouth. Starting the servo motor two drives the crank two to rotate the rocker arm two. The other end of the rocker arm two is mounted on the surface of the corner mouth control lever through a connecting rod. With the limiting assistance of the rocker arm two, the corner mouth control lever can better control the corner mouth of the robot, making the device more complete. Attached Figure Description

[0015] Figure 1 A side view of the mechanical structure of a robot mouth provided by this utility model;

[0016] Figure 2 A partial side view of the mechanical structure of a robot mouth provided by this utility model;

[0017] Figure 3 A rear view of the mechanical structure of a robot mouth provided by this utility model;

[0018] Figure 4 A side view of the drive assembly of the mechanical structure of a robot mouth provided by this utility model.

[0019] Legend:

[0020] 1. Robot head; 2. Upper jaw; 3. Lower jaw; 4. Drive assembly; 401. Servo motor 1; 402. Crank 1; 403. Connecting rod; 404. Joystick 1; 5. Servo motor 2; 6. Crank 2; 7. Joystick 2; 8. Servo motor 3; 9. Crank 3; 10. Mouth control lever; 11. Servo motor 4; 12. Crank 4; 13. Mouth control plate 1; 14. Joystick 3; 15. Servo motor 5; 16. Crank 5; 17. Mouth control plate 2; 18. Joystick 4. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-4 This utility model provides a technical solution: a mechanical structure for a robot's mouth, including: a robot head 1, an upper jaw 2 mounted on the surface of the robot head 1, a lower jaw 3 mounted on the bottom of the robot head 1, and a drive assembly 4 disposed on the surface of the robot head 1. The drive assembly 4 includes a servo motor 401, a crank 402, a connecting rod 403, and a rocker arm 404. One end of the rocker arm 404 is mounted on the inner wall of the lower jaw 3 via a connecting rod.

[0023] Specifically: by activating the drive component 4, the lower jaw 3 installed at the bottom of the robot head 1 is moved, making the opening and closing of the robot's mouth more natural, increasing the opening angle of the mouth, and making the device more complete.

[0024] In one embodiment, the surface of servo motor 401 is mounted on the surface of robot head 1, one end of crank 402 is mounted on the output end of servo motor 401, one end of connecting rod 403 is mounted on the other end of crank 402 via a connecting rod, and the other end of rocker arm 404 is mounted on the other end of connecting rod 403 via a connecting rod.

[0025] Specifically: Crank 402 and connecting rod 403 are connected by a connecting rod. Connecting rod 403 is connected to rocker arm 404 via the connecting rod. Rocker arm 404 is installed on the inner wall of jaw 3 via the connecting rod. By activating servo motor 401, the crank 402 installed at its output end moves, causing connecting rod 403 to follow the movement, which in turn drives rocker arm 404. This causes jaw 3, installed at the other end of rocker arm 404, to open and close, making the opening and closing of the robot's mouth more natural and improving the device.

[0026] In one embodiment, servo motors 2 and 5 are installed on both sides of the robot head 1. Crank 2 and 6 are installed at the output end of servo motor 2 and 6. A rocker arm 2 and 7 are installed at the other end of crank 2 and 6 via a connecting rod. Servo motors 3 and 8 are installed on both sides of the robot head 1. Crank 3 and 9 are installed at the output end of servo motor 3 and 9. A mouth corner control rod 10 is installed at the other end of crank 3 and 9 via a connecting rod. The other end of rocker arm 2 and 7 is installed on the surface of mouth corner control rod 10 via a connecting rod.

[0027] Specifically: By activating the servo motors 3 and 8 installed on both sides of the upper jaw 2, the crank 3 and 9 are driven to rotate, causing the other end of the crank 3 and 9 to rotate via the mouth corner control rod 10 installed through the connecting rod, thus completing the movement of the robot's mouth corner. Activating the servo motor 2 and 5 drives the crank 2 and 6 to rotate, causing the other end of the crank 2 and 6 to rotate via the rocker arm 2 and 7 installed through the connecting rod. The other end of the rocker arm 2 and 7 is connected to the surface of the mouth corner control rod 10 through the connecting rod. With the assistance of the rocker arm 2 and 7, the mouth corner control rod 10 can better control the robot's mouth corner, making the device more complete.

[0028] In one embodiment, servo motors 11 are installed on both sides of the upper jaw 2. A crank 12 is installed at the output end of the servo motors 11. A mouth control plate 13 is installed at the other end of the crank 12 via a connecting rod. A rocker arm 14 is installed on the surface of the mouth control plate 13 via a connecting rod. The other end of the rocker arm 14 is installed on the surface of the upper jaw 2 via a connecting rod.

[0029] Specifically: By activating the servo motors 4 11 installed on both sides of the upper jaw 2, the crank 4 12 is driven to rotate, which in turn drives the mouth control plate 1 13 installed on the other end of the crank 4 12 via a connecting rod. The rotation of the mouth control plate 1 13 controls the upper lip of the robot. The other end of the rocker arm 3 14 installed on the surface of the mouth control plate 1 13 via the connecting rod is installed on the upper jaw 2 via the connecting rod. With the auxiliary restraint of the rocker arm 3 14, the mouth control plate 1 13 can better control the upper lip of the robot, making the device more complete.

[0030] In one embodiment, servo motors 15 are installed on both sides of the lower jaw 3. A crank 16 is installed at the output end of the servo motors 15. A mouth control plate 17 is installed at the other end of the crank 16 via a connecting rod. A rocker arm 18 is installed on the surface of the mouth control plate 17 via a connecting rod. The other end of the rocker arm 18 is installed on the surface of the lower jaw 3 via a connecting rod.

[0031] Specifically: By activating the servo motors 15 mounted on both sides of the lower jaw 3, the crank 16 is driven to rotate, which in turn drives the mouth control plate 17 mounted on the other end of the crank 16 via a connecting rod. The rotation of the mouth control plate 17 controls the robot's lower lip. The other end of the rocker arm 18 mounted on the surface of the mouth control plate 17 via the connecting rod is mounted on the lower jaw 3 via the connecting rod. With the auxiliary restraint of the rocker arm 18, the mouth control plate 17 can better control the upper lip of the robot, making the device more complete.

[0032] Working principle: Crank 402 and connecting rod 403 are connected by a connecting rod. Connecting rod 403 is connected to rocker arm 404 via the connecting rod. Rocker arm 404 is mounted on the inner wall of the lower jaw 3 via the connecting rod. Activating servo motor 401 moves crank 402 at its output end, causing connecting rod 403 to follow suit, which in turn moves rocker arm 404. This causes the lower jaw 3, mounted on the other end of rocker arm 404, to open and close. The interaction between crank 402, connecting rod 403, and rocker arm 404 opens and closes the robot's mouth. The opening and closing of the jaws allows for a more natural movement, making the device more complete. Activating the servo motors 3 and 8 mounted on both sides of the upper jaw 2 drives the crank 3 and 9, causing the other end of the crank 3 and 9 to rotate via a connecting rod connected to the corner mouth control lever 10, thus completing the robot's mouth movements. Activating the servo motor 2 and 5 drives the crank 2 and 6, causing the other end of the crank 2 and 6 to rotate via a connecting rod connected to the rocker arm 2 and 7. The other end of the rocker arm 2 and 7 is connected to the surface of the corner mouth control lever 10 via a connecting rod, allowing the corner mouth control lever 10 to move more effectively. To control the robot's mouth, servo motors 411 mounted on both sides of the upper jaw 2 are activated, driving crank 412 to rotate. This, in turn, rotates the mouth control plate 13, which is connected to the upper jaw 2 via a connecting rod. The rotation of the mouth control plate 13 controls the robot's upper lip. A rocker arm 314, connected to the surface of the mouth control plate 13 via a connecting rod, is mounted on the upper jaw 2. The rocker arm 314 provides additional restraint, allowing the mouth control plate 13 to better control the robot's upper lip. The control system is achieved by activating the servo motors 15 mounted on both sides of the lower jaw 3, which drive the crank 16 to rotate. This, in turn, drives the mouth control plate 17, which is mounted on the other end of the crank 16 via a connecting rod. The rotation of the mouth control plate 17 controls the robot's lower lip. The other end of the rocker arm 18, mounted on the surface of the mouth control plate 17 via a connecting rod, is mounted on the lower jaw 3 via a connecting rod. With the assistance and restraint of the rocker arm 18, the mouth control plate 17 can better control the upper lip of the robot, making the device more complete.

[0033] 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 a robot's mouth, characterized in that, include: The robot head (1) has an upper jaw (2) mounted on its surface and a lower jaw (3) mounted on its bottom. The robot head (1) has a drive assembly (4) mounted on its surface. The drive assembly (4) includes a servo motor (401), a crank (402), a connecting rod (403), and a rocker arm (404). One end of the rocker arm (404) is mounted on the inner wall of the lower jaw (3) via a connecting rod. Both sides of the robot head (1) have servo motors (5) mounted on their sides. The output end of the servo motor (5) has a crank (6) mounted on its side. The other end of the crank (6) has a rocker arm (7) mounted on its side via a connecting rod. Both sides of the robot head (1) have servo motors (8) mounted on their sides. The output end of the servo motor (8) has a crank (9) mounted on its side. The other end of the crank (9) has a mouth control rod (10) mounted on its side via a connecting rod. The other end of the rocker arm (7) is mounted on the surface of the mouth control rod (10) via a connecting rod.

2. The mechanical structure of a robot mouth according to claim 1, characterized in that: The surface of the servo motor (401) is mounted on the surface of the robot head (1). One end of the crank (402) is mounted on the output end of the servo motor (401). One end of the connecting rod (403) is mounted on the other end of the crank (402) via a connecting rod. The other end of the rocker arm (404) is mounted on the other end of the connecting rod (403) via a connecting rod.

3. The mechanical structure of a robot mouth according to claim 1, characterized in that: Servo motors (11) are installed on both sides of the upper jaw (2). A crank (12) is installed at the output end of the servo motor (11). A mouth control plate (13) is installed at the other end of the crank (12) via a connecting rod.

4. The mechanical structure of a robot mouth according to claim 3, characterized in that: A rocker arm three (14) is mounted on the surface of the mouth control piece one (13) via a connecting rod, and the other end of the rocker arm three (14) is mounted on the surface of the palate (2) via a connecting rod.

5. The mechanical structure of a robot mouth according to claim 1, characterized in that: Servo motor 5 (15) is installed on both sides of the lower jaw (3). Crank 5 (16) is installed at the output end of the servo motor 5 (15). Mouth control plate 2 (17) is installed at the other end of the crank 5 (16) via a connecting rod.

6. The mechanical structure of a robot mouth according to claim 5, characterized in that: The surface of the mouth control piece 2 (17) is fitted with a rocker arm 4 (18) via a connecting rod, and the other end of the rocker arm 4 (18) is fitted with a connecting rod on the surface of the lower jaw (3).