Height-Adjustable Crib Double-Lock Assembly Against Misoperation
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Solution Overview
Problem
Existing height-adjustable cribs pose a safety hazard due to the risk of misoperation of the key mechanism used to adjust the sleeping basket's height, which can lead to unintended movements.
Innovation Solution
A double-lock assembly is integrated into the crib's mechanism, featuring a pulling portion and a pressing portion with a clamping mechanism that prevents direct pressing misoperation, ensuring safe and precise height adjustments by using springs and clamping slots to secure the sleeve rods and sleeping basket at desired heights.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single key mechanism is used to adjust the sleeping basket height, then the device complexity is reduced, but the reliability deteriorates due to misoperation risks
Solution Approach 1:
The single key mechanism is segmented into two distinct components: a pulling portion and a pressing portion. The pulling portion is responsible for releasing the locking state, while the pressing portion executes the height adjustment. This segmentation ensures that the pressing portion cannot be accidentally activated without first deliberately pulling the pulling portion, thereby eliminating misoperation risks while maintaining structural simplicity.
2Ease of operation
If the pressing portion is made easily accessible for operation, then the ease of operation is improved, but the reliability deteriorates due to accidental pressing
Solution Approach 1:
Before the pressing portion can be accessed or activated, the pulling portion must first be pulled to transition the mechanism from a locked state to an unlocked state. This preliminary action serves as a deliberate user intent indicator, ensuring that any subsequent pressing is intentional rather than accidental, while still allowing convenient operation when needed.
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 double-lock assembly enhances operational safety by preventing accidental adjustments and ensuring secure locking of the sleeve rods and sleeping basket, reducing the risk of misoperation and enhancing user safety.
Implementation Method 1
a first spring is provided between the spring mounting seat and an inner top surface of the mounting slot
Data Source
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AI summary
A crib includes a left support portion, a right support portion and a sleeping basket. Each of the left support portion and the right support portion includes a base, a support rod and a sleeve rod. The support rod is provided with a bottom portion connected to a top portion of the base and an upper portion nested in a lower portion of the sleeve rod. The sleeping basket is provided between the sleeve rod of the left support portion and the sleeve rod of the right support portion. An outer side of a bottom portion of the sleeve rod is provided with a double-lock assembly. The double-lock assembly includes a mounting portion, a pulling portion and a pressing portion. The mounting portion is connected to the sleeve rod. The pulling portion and the pressing portion are arranged on the mounting portion, and the pulling portion is located above the pressing portion.