Integrated Locking Knob and Positioning Pin for Compact Sleeve Stability
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Solution Overview
Problem
Existing locking and positioning mechanisms for sliding members on vertical supports face challenges in adjusting tightness, leading to wobbling issues, and require significant space for locking structures, which can disrupt the layout of other components.
Innovation Solution
A compact locking and positioning mechanism that integrates a locking knob and positioning pin within a support sleeve, utilizing an elastic member for resetting force and minimizing space occupation, allowing for both positioning and locking of the support sleeve on a stand column.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a locking structure is added to the sliding member to prevent wobble, then the stability of the sliding member is improved, but the space occupied by the sliding member increases and the layout of other structures is affected
Solution Approach 1:
The locking structure and positioning structure are merged into a single integrated component. The positioning pin serves dual functions: it positions the sliding member at specific heights and simultaneously locks it in place. This integration eliminates the need for separate locking and positioning structures, reducing space occupation while maintaining stability.
Solution Approach 2:
The positioning pin is designed to perform multiple functions: positioning the sliding member at predetermined heights, locking the sliding member to prevent wobble, and enabling easy adjustment by being removable. This multi-functional design allows a single component to replace what would traditionally require multiple separate structures.
2Stability of the object's composition
If a separate locking structure is added to achieve tightness adjustment, then the stability of the sliding member is improved, but the device complexity increases
Solution Approach 1:
The locking function and positioning function are combined into a single positioning pin structure. The positioning pin includes a locking portion that engages with the support column to provide both positioning and locking functions, eliminating the need for separate locking mechanisms and reducing overall structural complexity.
Solution Approach 2:
The locking function is extracted from a separate locking structure and integrated directly into the positioning pin. The positioning pin itself becomes the locking element through its locking portion, simplifying the overall structure by removing the need for additional locking components.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The mechanism effectively positions and locks the support sleeve while maintaining a compact structure, reducing space occupancy and facilitating the layout of other components, with the elastic member enhancing operational convenience.
Implementation Method 1
an elastic member is provided between the positioning pin and the locking knob, and when the positioning pin extends inward under an action of the elastic member
Implementation Method 2
a locking knob, wherein the locking knob is in a threaded connection with a side wall of a support sleeve
Data Source
AI summary
The present disclosure relates to a locking and positioning mechanism and a rotational folding positioning apparatus. The locking and positioning mechanism includes a locking knob and a positioning pin. The locking knob is in a threaded connection with a side wall of a support sleeve, and the support sleeve sleeves a stand column; the locking knob can be screwed in and out relative to the support sleeve, and when the locking knob is screwed inward, an inner end of the locking knob presses tightly against the stand column for locking. The positioning pin is coaxially arranged through the locking knob, and the positioning pin can extend inward and outward relative to the locking knob; an elastic member is provided between the positioning pin and the locking knob. The mechanism is compact in structure, occupies minimal space, and is convenient and effortless to operate.