Rotary Ring Structure for Two-Way Rotation Beyond 180 Degrees
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Solution Overview
Problem
Current rotary devices are limited to a two-way rotation angle of 180 degrees, making it difficult to achieve large-angle rotation control due to structural limitations and mechanism interference, which restricts their ability to handle angles greater than 180 degrees effectively.
Innovation Solution
A rotary device design that incorporates multiple movable rings and a supporting member with positioning and stopping portions, allowing for increased two-way limiting angles and rotations by using the movable rings to sequentially rotate and stop, thereby overcoming the limitations of existing designs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional rotary device structure is used, then the structure is simple, but the two-way rotation angle is limited to 180 degrees
Solution Approach 1:
The rotary device is divided into multiple independent movable rings (first movable ring, second movable ring, etc.) that can rotate independently. Each ring has acting portions that interact with positioning portions and stopping portions, allowing the system to achieve rotation angles greater than 180 degrees by combining the rotation ranges of multiple segmented components without increasing overall structural complexity
Solution Approach 2:
The movable rings serve as intermediary elements between the rotatable member and the supporting member. These intermediaries transmit and amplify rotation angles through their acting portions interacting with positioning and stopping portions, enabling large-angle rotation control without requiring direct complex mechanisms between the rotatable member and support structure
2Adaptability or versatility
If the two-way limitation angle is increased to greater than 180 degrees, then the rotation control capability is improved, but mechanism interference is caused
Solution Approach 1:
By segmenting the rotation control into multiple independent movable rings, each ring handles a portion of the rotation range. This segmentation prevents mechanism interference because each ring operates independently within its own spatial envelope, and the acting portions are positioned to avoid collision during rotation
Solution Approach 2:
The acting portions of the movable rings are positioned in different spatial dimensions and orientations. The first movable ring's acting portion and the second movable ring's acting portion are arranged at different angular positions, allowing them to rotate through large angles without interfering with each other's motion paths
3Adaptability or versatility
If multiple movable rings are added to increase two-way rotations, then the rotation range is improved, but the device complexity increases
Solution Approach 1:
Each movable ring is designed with universal functionality - they all have acting portions that can interact with positioning portions and stopping portions in the same manner. This multi-functionality allows multiple rings to be added to increase rotation range while maintaining a standardized, modular structure that doesn't proportionally increase complexity
Solution Approach 2:
The movable rings are arranged coaxially and nested within the same cylindrical space between the rotatable member and supporting member. This nesting approach allows multiple rings to occupy the same radial envelope, increasing rotation capability without proportionally increasing the device's external dimensions or structural complexity
Data Source
AI summary
A rotary device includes a rotatable member, at least one movable ring, and a supporting member. The supporting member includes a stopping portion. The rotatable member includes a rotary ring and a positioning portion. The movable ring includes an acting portion. The rotary ring and the at least one movable ring are coaxially disposed on the supporting member, and the movable ring is disposed between the rotatable member and the supporting member. The rotary ring and the at least one movable ring is capable of rotating relative to the supporting member. A part of the positioning portion overlaps the movable ring. When the rotary ring rotates relative to the supporting member, the part of the positioning portion pushes the acting portion, to drive the at least one movable ring to rotate until the acting portion is stopped between the positioning portion and the stopping portion.