Container Engaging Structure with Movable Buckles for Secure Sealing
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Solution Overview
Problem
Traditional plastic lunch boxes face issues with deformation leading to insecure sealing and cumbersome assembly/disassembly due to engaging ribs that fail to snap firmly onto the containing body, resulting in leakage and prolonged operation times.
Innovation Solution
The container and cover design features an outer lip edge with cross-patterned engaging portions, each with a movable buckle and engaging curve, and a covering member with locking protrusions and grooves that interlock securely, enhancing the structural strength and ease of use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional engaging ribs are used to secure the box cover to the containing body, then the assembly is simple, but the engaging ribs cannot firmly snap on the periphery when deformation occurs, leading to separation and leakage
Solution Approach 1:
The engaging structure is divided into multiple independent engaging portions (at least two) distributed around the periphery, each with its own movable buckle and engaging curve. This segmentation allows each portion to independently maintain engagement under deformation, improving overall sealing reliability without requiring a single complex engaging mechanism.
Solution Approach 2:
The engaging portions incorporate movable buckles that can dynamically adjust during engagement and deformation. The movable buckle allows the engaging curve to flex and adapt when the containing body or box cover deforms, maintaining firm snap engagement throughout the deformation range, thus preventing separation while keeping the structure relatively simple.
2Reliability
If multiple engaging ribs are provided around the containing body, then the sealing reliability improves, but the time required to buckle or remove each engaging rib increases, making assembly and disassembly more troublesome
Solution Approach 1:
Multiple engaging portions are merged into a continuous engaging structure where the covering lip integrates all engaging portions along its periphery. This allows the user to engage or disengage all portions simultaneously in a single motion, maintaining sealing reliability through multiple contact points while eliminating the time loss of sequential buckling or removal of individual ribs.
Solution Approach 2:
The engaging portions are pre-positioned and pre-shaped on the covering lip and containing body peripheries. When the covering member is brought to the containing body, the engaging portions are already in the correct positions and orientations, allowing immediate snap engagement without requiring sequential adjustment or alignment of each individual rib, thus reducing assembly time while maintaining reliability.
3Device complexity
If the box cover only covers the periphery at side edges, then the structure is simple, but deformation causes the side to deform and engaging ribs to fail, resulting in separation and overflow
Solution Approach 1:
The covering lip is designed with locally enhanced engaging portions at specific positions around the periphery, rather than uniform thickness or structure throughout. Each engaging portion has concentrated structural features (engaging protrusion, engaging recess, movable buckle) that provide localized strength and engagement capability, maintaining reliability under deformation while keeping the overall covering structure simple.
Solution Approach 2:
The engaging structure combines rigid components (engaging protrusion, engaging recess) with flexible components (movable buckle) in a composite arrangement. The rigid parts provide structural strength and geometric interlocking, while the movable buckle provides flexibility to accommodate deformation, creating a composite engaging system that maintains stability under deformation without requiring a completely complex covering structure.
Data Source
AI summary
An engaging structure for a container and its cover has a containing body and a corresponding covering member. The upper opening of the containing body has an outer lip edge, the opposing positions of the outer lip edge is provided with at least two the engaging portions. The outer edge of the engaging portion has with a movable buckle, the outer periphery of the covering member is provided with a covering lip covering the outer lip edge of the containing body, and the opposing positions of the periphery of the covering lip has at least two the locking portions corresponding to the engaging portion of the containing body. A locking protrusion is disposed on the locking portion, locking portion of the covering member is corresponding to each engaging portion of the containing body. By flipping the movable buckle, each the engaging curve can be fastened tightly to each locking protrusions.