Telescopic Robot Limb Linkage for Versatile Motion and Joint Support

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Solution Overview

Problem

Existing humanoid robot limb structures either have limited action mimicry capabilities or are overly complex, lacking a balance between simplicity and versatility.

Innovation Solution

A robot limb structure featuring a main limb body with joint-connection parts, joint components forming connecting rod mechanisms, and telescopic parts with adjustable lengths to drive joint actions, allowing for a wide range of motions while maintaining a simple design.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the limb structure design is simple, then the structure is easier to manufacture and maintain, but the action mimicry capability is limited

Engineering Contradiction:
Improvestructure simplicityVSAvoidaction mimicry capability
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The patent implements nesting by placing telescopic parts inside the limb structure, allowing the limb to change length while maintaining a compact form. The telescopic part includes an inner telescopic body and an outer telescopic body that slide relative to each other, enabling the limb to extend and retract without adding external complexity.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The patent applies dynamics by making the limb structure adjustable through telescopic parts that can change length during operation. The first and second telescopic parts allow the limb to adapt its configuration dynamically, enabling diverse actions while keeping the base structure simple and easy to manufacture.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If the limb structure design is complex, then more actions can be mimicked, but the structure becomes overly complicated

Engineering Contradiction:
Improveaction mimicry capabilityVSAvoidstructure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent segments the limb structure into distinct functional modules: joint components with connecting rod mechanisms at the ends, and telescopic parts in the middle. This segmentation allows each module to perform its specific function independently, achieving high versatility without requiring the entire structure to be complex.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent achieves multi-functionality through the connecting rod mechanisms that can perform multiple functions: they provide joint rotation, support the telescopic parts, and enable various limb positions. This universal design allows the same structural elements to serve multiple purposes, reducing overall complexity while maintaining action mimicry capability.

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

3Strength

If telescopic parts are added to enable length adjustment, then joint support is improved and stress concentration is reduced, but the device complexity increases

Engineering Contradiction:
Improvejoint supportVSAvoidstructure complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The patent merges the telescopic function with the joint support function by integrating the telescopic parts into the existing limb structure. The first and second telescopic parts are incorporated as integral components that simultaneously provide length adjustment and structural support, reducing the need for separate support elements and minimizing overall complexity.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS20250381683A1Robot limb structure and robot
Publication Date: 2025.12.18 BEIJING YOUZHUJU NETWORK TECH CO LTD
  • US20250381683A1 patent drawing
  • US20250381683A1 patent drawing
  • US20250381683A1 patent drawing

AI summary

The present disclosure provides a robot limb structure and a robot. The limb structure includes: a main limb body, where the main limb body is provided with two joint-connection parts respectively at two ends; two joint components, where the two joint components are connected to the two joint-connection parts, respectively, and each joint component forms a connecting rod mechanism with a joint-connection part corresponding to each joint component; and two telescopic parts, which are provided corresponding to the two joint-connection parts, where one end of each telescopic part is hinged to a joint component of the two joint components, and the other end of each telescopic part is hinged to the main limb body, and a length of each telescopic part is adjustable so as to drive a connecting rod mechanism connected to each telescopic part to move.