Telescopic Mechanical Arm Inner Outer Sleeve Length Adjustment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional mechanical arms have fixed-length rods, limiting their use to specific operation distances, requiring different arms for varying distances, which is inefficient.
Innovation Solution
A length-adjustable mechanical arm design featuring a base, first and second arm units, with an inner and outer sleeve system that allows the arm to be extended or retracted by locking mechanisms, enabling adjustable operation distances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed-length rod is used in the mechanical arm, then the structure is simple and reliable, but the arm can only be used for fixed distance operation
Solution Approach 1:
The patent applies the dynamics principle by making the rod length adjustable through a telescopic structure with inner and outer sleeves that can slide relative to each other. The rod transitions from a fixed length to a variable length configuration, allowing the mechanical arm to adapt to different operation distances while maintaining structural integrity through locking mechanisms at extended and retracted positions.
Solution Approach 2:
The patent implements segmentation by dividing the rod into multiple segments (inner sleeve and outer sleeve) that can move independently relative to each other. This segmentation allows the rod to be extended or retracted by sliding the inner sleeve within the outer sleeve, enabling length adjustment while keeping each segment structurally simple and reliable.
2Adaptability or versatility
If multiple mechanical arms of different lengths are used for different operation distances, then each arm is optimized for its specific distance, but it requires storing and switching between multiple arms
Solution Approach 1:
The patent applies universality by designing a single mechanical arm with an adjustable-length rod that can perform multiple functions across different operation distances. Instead of requiring separate arms for short and long-distance operations, the telescopic rod structure allows one arm to serve multiple distance requirements, eliminating the need to store and switch between multiple arms.
3Adaptability or versatility
If the rod length is made adjustable, then the arm can operate at multiple distances, but the locking mechanism adds complexity
Solution Approach 1:
The patent applies dynamics by implementing a locking mechanism that transitions between locked and unlocked states to control rod length adjustment. The mechanism locks the inner sleeve relative to the outer sleeve at desired positions (extended or retracted) and allows sliding when unlocked, providing controlled adjustability while maintaining structural stability during operation.
Solution Approach 2:
The patent implements self-service by designing a locking mechanism that automatically engages at predetermined positions (extended and retracted) without requiring external intervention. The mechanism uses the relative movement between inner and outer sleeves to trigger locking, allowing the system to self-regulate its length configuration through inherent mechanical interactions rather than complex external control systems.
Data Source
AI summary
A length-adjustable mechanical arm includes: a base; a first arm unit having one end formed with a first pivot portion pivoted to the base, and another end formed with a second pivot portion, a second arm unit pivoted to the first arm unit includes a pivot member, an inner sleeve, an outer sleeve and an accessory mounting seat. The length of the second arm unit of the mechanical arm is adjustable by adjusting the inner and outer sleeves, and the second arm unit is switchable between an extended position and a retracted position. Therefore, the mechanical arm can be used for two distance operation.