Polygonal Locking Neck Telescopic Coupling Mechanism

The container employs a dynamic telescopic coupling mechanism where the first and second members can axially displace relative to each other. The polygonal portion of the second member slides within the polygonal locking neck of the first member, enabling the container to adjust its effective size by extending or retracting the telescopic sections, thus accommodating objects of varying dimensions.

The design implements a nested structure where the second member is partially received within the first member through the polygonal locking neck. This nesting arrangement allows one container component to be inserted into another, creating a compact configuration that can expand when needed while maintaining a space-efficient form when retracted.

The coupling mechanism features self-locking elements including arresting members with arresting portions and locking teeth that automatically engage to prevent axial displacement. When the polygonal portion is rotated to a specific angular position, the locking teeth on the second member engage with the arresting portions on the first member, creating a self-locking condition that maintains the adjusted axial position without requiring additional active components.

The polygonal cross-section design creates asymmetric engagement surfaces where the flat face portions and arresting portions are positioned at specific angular orientations. This asymmetry ensures that when the members are rotated into the locked position, the geometric features align to prevent reverse rotation and axial displacement, providing inherent positional stability.