Smart Door Lock Shielding Cover Mechanical Fixation
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Solution Overview
Problem
Existing door lock shielding covers face issues with secure fixation due to material differences between the plastic shielding cover panel and iron attraction member, leading to insecure and endurable bonding when glued together.
Innovation Solution
A door lock shielding cover design that uses a shielding cover body with through holes and corresponding blocking portions, where the attraction member is fixed to the shielding cover body through connecting portions passing through these holes, providing a firmer and more secure connection than traditional glue bonding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If glue bonding is used to fix the attraction member to the shielding cover panel, then the assembly process is simple, but the fixation is insecure and not durable due to material differences between plastic and iron
Solution Approach 1:
The fixation system is segmented into multiple components: connecting portions integrated into the shielding cover panel, through holes in the attraction member, and blocking portions that prevent disengagement. This segmentation replaces the single glue bonding interface with a multi-element mechanical connection system that addresses both ease of assembly and fixation reliability.
Solution Approach 2:
The patent replaces the chemical bonding mechanism (glue) with a mechanical fastening system consisting of connecting portions, through holes, and blocking portions. This substitution eliminates the reliability issues associated with glue bonding between dissimilar materials while maintaining assembly simplicity through the integrated design of the connecting portions.
2Reliability
If multiple through holes and blocking portions are added to fix the attraction member, then the fixation security is improved, but the device complexity increases
Solution Approach 1:
The connecting portions are merged with the shielding cover panel as integrated structures rather than separate components. This merging reduces device complexity by eliminating the need for additional fasteners or assembly steps, while the blocking portions provide the necessary fixation security through a simple snap-fit mechanism.
3Adaptability or versatility
If the shielding cover body is made of plastic and attraction member is iron, then the materials are easily obtainable and cost-effective, but the glue bonding between them is not secure
Solution Approach 1:
The connecting portions act as intermediaries between the plastic shielding cover panel and the iron attraction member. These connecting portions provide a mechanical interface that bridges the two dissimilar materials, eliminating the need for glue bonding while maintaining strong attachment through the blocking portions that prevent disengagement.
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
Ensures a stable and secure fixation between the shielding cover body and attraction member, preventing material-related bonding issues and ensuring the shielding cover remains firmly attached to the smart door lock.
Implementation Method 1
The attraction member and the lock panel are secured together by magnetic attraction
Data Source
AI summary
Door lock shielding cover, which includes a shielding cover body, an attraction member, and blocking portions. The shielding cover body is configured to be movably installed onto a lock panel of a smart door lock. The attraction member is installed on a side of the shielding cover body adjacent to the lock panel of the smart door lock. A plurality of through holes is defined in the attraction member. The blocking portions correspond to the through holes in a one-to-one manner. Each of the blocking portions is fixed to the shielding cover body through a connecting portion that penetrates the through hole, thereby fixing the attraction member to the shielding cover body. The fixing between the shielding cover body and the attraction member in the door lock shielding cover is firm and durable.