Modular Robot Waist Skeleton for Swing, Bend, and Rotation

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Solution Overview

Problem

Conventional bionic robots lack movable waist parts that effectively bridge the half-body and head sections, limiting their functionality and versatility.

Innovation Solution

A modular robot waist skeleton comprising a swing waist actuator, bend waist actuator, rotate waist actuator, and interconnected brackets, enabling three-degree-of-freedom movements such as swinging, bending, and rotation, enhancing the robot's ability to mimic human-like motion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the waist part is integrally designed, then the structure is simple, but the robot cannot perform waist movements

Engineering Contradiction:
Improvewaist movement capabilityVSAvoidwaist structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The waist structure is divided into multiple independent modules including swing mechanism, bending mechanism, and rotation mechanism. Each module can move independently to achieve three degrees of freedom, transforming the integral structure into modular components that maintain simplicity while enabling complex movements.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent transforms the static integral waist structure into a dynamic modular structure where each module can perform specific movements. The swing module enables left-right oscillation, the bending module enables forward-backward movement, and the rotation module enables rotational movement, collectively achieving human-like waist dynamics.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If the waist part is made movable with multiple modules, then the robot can perform natural movements, but the structure becomes complex

Engineering Contradiction:
Improvenatural movement capabilityVSAvoidwaist skeleton complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The complex waist movement capability is achieved by segmenting the function into three independent modules: swing mechanism for left-right oscillation, bending mechanism for forward-backward movement, and rotation mechanism for rotational movement. This segmentation makes the complex function manageable and implementable.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Each module is designed to perform a specific function that contributes to overall natural movement. The swing module handles lateral movement, the bending module handles forward-backward movement, and the rotation module handles rotational movement, creating a universal waist structure that can perform multiple natural human-like movements.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS11813738B2Robot waist skeleton and robot
Publication Date: 2023.11.14 CHONGQING XINGJIE SHUXING TECHNOLOGY PARTNERSHIP ENTERPRISE (LLP)
  • US11813738B2 patent drawing
  • US11813738B2 patent drawing
  • US11813738B2 patent drawing

AI summary

A robot waist skeleton includes: a swing waist effector; a first bracket, one end of which is connected to an output end of the swing waist effector; a bend waist effector, a case of which is connected to the other end of the first bracket; a second bracket, one end of which is connected to the case of the swing waist effector; a rotate waist effector, an output end of which is connected to the other end of the second bracket; and a third bracket, one end of which is connected to a case of the swing waist effector.