Expansion Connecting Structure for Stable Mechanical Fixation
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Solution Overview
Problem
The fixation modes of existing connecting structures in mechanical systems are unstable, leading to poor performance and high fault rates due to lack of effective stabilization.
Innovation Solution
A connecting structure comprising a coating component with a storage cavity, an expansion component with rotary and fixed states, and fasteners that secure the expansion component within the coating component, enhancing stability through conical holes and threaded connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional connecting structures are used for mechanical connection, then the structure is simple and easy to manufacture, but the fixation mode is unstable leading to high fault rates
Solution Approach 1:
The connecting structure is divided into multiple functional components: a coating component with storage cavity, an expansion component with rotary and fixed states, and fastening components. This segmentation allows each part to perform its specific function (rotation, expansion, fixation) independently, improving overall reliability while maintaining manufacturing simplicity
Solution Approach 2:
The expansion component is designed to transition between rotary state and fixed state dynamically. During installation, the expansion component can rotate for easy insertion, then expand to lock into the coating component, providing both ease of operation and stable fixation. This dynamic capability resolves the contradiction between simple installation and reliable fixation
2Stability of the object's composition
If the expansion component is designed with rotary and fixed states, then the stationarity of the connecting structure is enhanced, but the device complexity increases
Solution Approach 1:
The expansion component is stored within the storage cavity of the coating component in a nested configuration. The expansion component can be partially inserted into the coating component, then expanded outward to engage with the coating component's inner surface. This nesting approach allows the complex expansion mechanism to be compactly integrated without significantly increasing overall device complexity
Solution Approach 2:
The expansion component is designed to automatically transition from rotary to fixed state through its own expansion mechanism. Once inserted, the expansion component expands and locks into place without requiring additional external fixation mechanisms, achieving stable fixation through self-service functionality
Data Source
AI summary
A connecting structure includes a coating component provided with a storage cavity and a first through hole, an expansion component provided with a second through hole and a first fastener. A part of the expansion component is stored in the storage cavity. The expansion component has a rotary state and a fixed state relative to the coating component. When the expansion component is in the rotary state, the expansion component can be rotated relative to the coating component. The first fastener can pass through the first through hole and extend into the second through hole to make the expansion component expand. The outer surface of the expansion component is pressed against the inner surface of the coating component to fix the expansion component in the coating component. The expansion component is in the fixed state relative to the coating component.