Pull Buckle Ejection Mechanism for One-Press Release
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Solution Overview
Problem
Existing pull buckles require users to both press the unlocking key and pull the button body and fastener apart, making them inconvenient to use.
Innovation Solution
A pull buckle design incorporating a buckle body, fastener, first elastic member, and key assemblies, where the key assemblies clamp or unlock the fastener by rotating a stopper, allowing the first elastic member to eject the fastener from the buckle body when pressed, facilitating easy unlocking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the existing pull buckle uses a button body and fastener that require pulling apart after pressing the unlocking key, then the locking function is achieved, but the ease of operation deteriorates because users must perform multiple actions (press and pull)
Solution Approach 1:
The first elastic member is configured to automatically eject the connecting portion from the mounting cavity after the key assembly rotates the stopper to the releasing position, eliminating the need for users to manually pull the button body and fastener apart. The elastic member self-propels the unlocking action, making the system serve itself rather than requiring additional user input.
Solution Approach 2:
The patent introduces a rotatable stopper that can dynamically transition between a clamping position (locking state) and a releasing position (unlocking state). This dynamic element allows the locking mechanism to switch states through rotation rather than requiring separation forces, transforming the operation from a static pull action to a dynamic rotational action.
2Device complexity
If the pull buckle uses a simple button body and fastener structure, then the device complexity is reduced, but the ease of operation deteriorates because manual pulling is required
Solution Approach 1:
The unlocking function is segmented into two independent components: the key assembly (with stopper) that controls the locking state, and the first elastic member that provides the ejection force. This segmentation allows each component to have a specialized function while working together to achieve automatic unlocking without significantly increasing overall structural complexity.
Solution Approach 2:
The stopper acts as an intermediary between the key assembly and the connecting portion. When rotated, the stopper mediates the transition from locked to unlocked state by disengaging from the connecting portion, which then triggers the elastic member to eject the fastener. This intermediary element enables automatic unlocking while maintaining structural simplicity.
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 design allows for convenient unlocking of the pull buckle by pressing the key assemblies, enhancing user experience by simplifying the separation process.
Implementation Method 1
a first elastic member, one end of which is in contact with the bottom wall of the mounting cavity and the other end of which is in contact with the connecting portion of the fastener
Implementation Method 2
the first elastic member is used to eject the connecting portion out of the mounting cavity and release the fastener
Data Source
AI summary
A pull buckle, which includes a lock body, a fastener, a first elastic member and a key assembly. The lock body is provided with a mounting cavity and an insertion port. One end of the fastener is provided with a connecting portion, which is inserted in the mounting cavity. The first elastic member is defined on a bottom wall of the mounting cavity and the bottom wall faces to the insertion port; the first elastic member contacts with the connecting portion when the fastener is inserted in the mounting cavity. The key assembly is clamped to the connecting portion so as to lock the fastener in the mounting cavity; or the key assembly is pressed to unlock the connecting portion, the first elastic member ejects the connecting portion out of the mounting cavity and releases the fastener.