Storage Box Lug-and-Buckle Fastening Against Vibration Spillage
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Solution Overview
Problem
Existing disposable food boxes suffer from inadequate fastening strength, leading to potential spillage of contents due to vibrations or squeezing, necessitating the use of additional materials like rubber bands or tapes, which increase costs and environmental pollution.
Innovation Solution
A storage box design featuring a container portion with lug sets and a lid portion with buckle pieces, where elongated slits on both components allow for secure engagement through physical deformation and rebound, enhancing the fastening strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the conventional buckle piece with triangle-like clips is pressed into the gap between triangular lugs, then the lid can be fastened to the container, but the cross engaging force is insufficient and the fastening strength is weak under vibration or extrusion
Solution Approach 1:
The buckle piece is divided into multiple engagement points along its length, with each segment having clips that engage with corresponding lugs. This segmentation distributes the fastening force across multiple points, preventing single-point failure under vibration or extrusion forces.
Solution Approach 2:
The engagement mechanism transitions from a simple planar clip-to-lug interface to a three-dimensional interlocking system where the buckle piece engages with lugs at multiple heights and positions, creating a more robust mechanical connection that resists forces from multiple directions.
2Reliability
If rubber bands or tapes are used to wrap the food box, then the lid can be securely fastened, but the purchase cost increases and environmental pollution is caused
Solution Approach 1:
The storage box incorporates an integrated fastening system where the buckle piece and lugs form a self-contained mechanical locking mechanism. The buckle piece's elastic deformation allows it to snap into engagement with the lugs, creating a secure fastening without requiring external rubber bands, tapes, or other additional materials.
Solution Approach 2:
The fastening function is merged into the structural components of the storage box itself. The buckle piece and lugs are integral parts of the lid and container, respectively, combining the container structure with the fastening mechanism into a unified design that eliminates the need for separate fastening materials.
3Ease of manufacture
If the lid is made with a simple buckle piece structure, then the manufacturing is easy, but the fastening strength is insufficient under vibration or squeezing
Solution Approach 1:
The buckle piece is designed with specific elastic parameters and geometric dimensions that allow it to deform and engage with the lugs. By optimizing the thickness, length, and clip geometry of the buckle piece, the design achieves strong mechanical engagement while maintaining manufacturability through standard molding processes.
Solution Approach 2:
The buckle piece incorporates elastic deformation capability, allowing it to dynamically adjust during engagement. The flexible nature of the buckle piece enables it to deform during the snapping action and then maintain a stable engaged state, providing both ease of manufacture through simple materials and strong fastening through dynamic mechanical behavior.
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 improved fastening configuration securely fastens the lid and container together, preventing spillage even under vibration or squeezing, without the need for additional fastening materials.
Implementation Method 1
at least one buckle piece bendably connected to one side of the upper main body... When the buckle piece is bent into the gap... the buckle piece is allowed to be abutted against the lug parts
Data Source
AI summary
A storage box includes a container portion and a lid portion. The container portion includes two lug parts and a gap defined therebetween. One side of each of the lug parts is formed with a lower elongated slit, and the lower elongated slits are coaxial with each other, and communicated with the gap. The lid portion includes a buckle piece bendably connected to one side of the lid portion, and two upper elongated slits are coaxial and opposite to each other. Each upper elongated slit is located between the upper main body and the buckle piece. When the lid portion covers the container portion, the buckle piece is bent into the gap, the upper elongated slits and the lower elongated slits are connected to each other, the buckle piece is abutted against the lug parts, and the lug parts are abutted against the buckle piece.