Interlocking Connecting Structure for Tool-Free Assembly
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Solution Overview
Problem
Conventional connecting structures for objects require additional tools like screws or ultrasonic welding and are prone to detachment under external forces, increasing manufacturing costs and reducing production speed.
Innovation Solution
A connecting structure comprising a first connecting portion with a first board, extension board, and main rib on one object, and a second connecting portion with a base, non-closed columnar body, and accommodating space on the corresponding object, which interlock to provide enhanced strength and prevent detachment without the need for additional tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional connecting structures (screws, hooks) are used to fix two objects, then the objects can be connected, but additional tools are needed which decreases production speed and increases manufacturing cost
Solution Approach 1:
The connecting structure is designed to be self-assembling without requiring external tools. The first connecting portion on the first object and the second connecting portion on the second object automatically engage with each other when the objects are brought together, eliminating the need for screws, screwdrivers, or other assembly tools. This self-service mechanism directly increases production speed and reduces manufacturing complexity.
2Reliability
If conventional connecting structures (screws, hooks) are used to fix two objects, then the objects can be connected, but the two fixed objects can be easily separated by applying two opposite external forces
Solution Approach 1:
The connecting structure transitions from a simple linear connection to a multi-dimensional interlocking system. The first connecting portion includes a first board extending in one direction and a second board extending in another direction, while the second connecting portion includes a base and a non-closed columnar body with a blocking wall. This three-dimensional configuration creates resistance to separation forces from multiple directions, significantly improving reliability under external forces.
Solution Approach 2:
The connecting structure employs asymmetric geometry where the first connecting portion and second connecting portion are non-mirror images of each other. The first board and second board extend at different angles and positions, while the non-closed columnar body has a specific orientation with its blocking wall positioned asymmetrically. This asymmetric design prevents easy separation by creating uneven force distribution that resists external forces more effectively than symmetric hook-and-recess designs.
3Strength
If conventional connecting structures are used, then objects can be assembled, but the structure lacks enhanced strength and mechanical advantage
Solution Approach 1:
The connecting structure is divided into distinct functional segments: the first board, second board, base, and non-closed columnar body. Each segment serves a specific mechanical function - the boards provide structural support and connection surfaces, the base provides mounting stability, and the non-closed columnar body with blocking wall provides the interlocking mechanism. This segmentation allows for optimized strength in each component while maintaining overall structural efficiency without unnecessary complexity.
Data Source
AI summary
A connecting structure includes a first connecting portion and a second connecting portion. The first connecting portion includes a first board and a second board. The first board includes a first body, an extension board and a main rib. The first body extends toward a second object. The extension board is disposed on the first body. The main rib is connected to a first object and disposed along the first body and the extension board. The second board connects to the first object, the first body, and the extension board. The second connecting portion includes a base connecting to the second object and a non-closed columnar body connecting to the base. The non-closed columnar body includes a blocking wall extending toward the first object and a bottom board disposed on the blocking wall. The blocking wall and the bottom board form an accommodating space corresponding to the extension board.