Foldable Crib Frame with Telescopic Legs and Rotatable Joints
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Solution Overview
Problem
Conventional cribs have large and cumbersome frames that occupy significant space and are difficult to move due to their inability to fold.
Innovation Solution
A quickly foldable crib frame design featuring a first and second U-shaped surrounding frame, upper and lower vertical rods, and a mechanism of rotatable and sliding connections, including riveting pins, plug-in lock blocks, and elastic locking protrusions, allowing the frame to be compactly folded by sliding and rotating components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the bed frame and bed surrounding frame are made rigid and stable, then structural stability is improved, but the frame cannot be folded and occupies large space
Solution Approach 1:
The bed frame is divided into multiple segments including the surrounding frame, support legs, and connecting components. Each segment can be independently folded and reconfigured, allowing the stable rigid structure to be collapsed into a compact form when not in use, thus resolving the contradiction between structural stability and space occupation.
Solution Approach 2:
The frame incorporates dynamic folding joints and telescopic support legs that allow the structure to transition between a stable expanded state for use and a compact folded state for storage. The support legs can be telescopically adjusted and locked at different positions, providing stability when extended and compactness when retracted.
2Strength
If the bed frame is made large and stable, then support capability is improved, but the frame becomes cumbersome and difficult to move
Solution Approach 1:
The frame is segmented into modular components that can be quickly assembled and disassembled. The surrounding frame separates from the support legs through folding joints, allowing the heavy stable structure to be broken down into manageable pieces for easy transport and reassembly, thus improving ease of movement without sacrificing support capability when assembled.
Solution Approach 2:
The frame employs dynamic folding mechanisms and telescopic support legs that enable rapid transformation between a large stable configuration for supporting the mattress and a compact configuration for movement. The support legs feature telescopic sections with locking mechanisms that provide stable support when extended and compact form when retracted.
3Volume of moving object
If the bed frame is designed to be foldable, then space occupation is reduced, but structural stability deteriorates
Solution Approach 1:
The frame uses dynamic folding joints with locking mechanisms that maintain structural stability when the frame is in its expanded configuration. The joints are designed to be rigid and secure during use, preventing unintended folding, while still allowing controlled folding for storage. The support legs incorporate telescopic sections with locking features that ensure stability when extended.
Solution Approach 2:
The frame is divided into segments connected by robust folding joints that maintain structural integrity. Each segment is designed to bear specific loads, and the connections between segments are reinforced to prevent instability during folding and unfolding operations, ensuring stability is maintained even with the foldable design.
4Strength
If the bed frame is made large and stable, then baby support capability is improved, but the frame becomes difficult to carry
Solution Approach 1:
The frame is segmented into separate components including the surrounding frame and support legs that can be independently folded and carried. This segmentation allows the heavy structure to be divided into lighter manageable sections for carrying, while still providing adequate support capability when assembled. The modular design enables selective carrying of components based on need.
Solution Approach 2:
The frame incorporates telescopic support legs with locking mechanisms that provide full support capability when extended but reduce the overall size and effective weight during transport when retracted. The dynamic configuration allows the frame to be compact for carrying yet fully functional for supporting a baby when assembled.
Data Source
Figure 1
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AI summary
A quickly foldable crib frame relates to the field of cribs and includes a first U-shaped surrounding frame (1), a second U-shaped surrounding frame (2), upper vertical rods (6), and lower vertical rods (7). Both the two free ends of the first U-shaped surrounding frame (1) and the two free ends of the second U-shaped surrounding frame (2) are rotatably connected to one ends of the upper vertical rods (6). The other ends of the upper vertical rods (6) are slidably fitted in the lower vertical rods (7) in the length directions of the lower vertical rods (7). After the crib frame is folded, it takes up less space and is convenient to be moved.