Waterproof Box Cover With Dead End Structure For Water Momentum Reduction
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Solution Overview
Problem
Packing-less-type waterproof boxes face issues with water infiltration during high-pressure washing and complex unlocking mechanisms, which compromise their waterproof performance and user convenience.
Innovation Solution
A waterproof box design featuring a rotatable cover with pivot points and a dead end structure that reduces water momentum and allows single-handed operation, along with an optional inner wall for enhanced splash protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a packing-less waterproof structure is used with overlaying convex and concave structures, then parts count and cost are reduced, but water infiltration occurs during high-pressure washing
Solution Approach 1:
The waterproof structure is divided into multiple functional segments: the overlaying convex-concave structure for basic waterproofing, the dead end structure for water momentum reduction, and the small passage for controlled water flow. This segmentation allows each component to address specific aspects of the waterproofing problem without requiring additional packing parts.
Solution Approach 2:
The small clearance between mating faces, which initially allows water infiltration, is converted into a beneficial feature by creating a controlled small passage. This passage guides water flow into the dead end structure, where water momentum is reduced and water is redirected away from internal components, transforming a potential weakness into a protective feature.
2Reliability
If multiple locks are arranged at separated positions for waterproofing, then waterproof reliability is improved, but unlocking operation becomes complex
Solution Approach 1:
Multiple locking functions are merged into a single integrated lock mechanism. The lock structure simultaneously engages with multiple locking positions on the box main body, allowing one unlocking operation to release all locks. This maintains the waterproof reliability of multiple engagement points while simplifying the user operation to a single action.
Solution Approach 2:
The single lock mechanism performs multiple functions: it engages with multiple locking positions, provides waterproof sealing, and enables single-handed operation. This multi-functional design eliminates the need for separate locks at each position, simplifying the unlocking operation while maintaining comprehensive waterproof protection.
3Ease of manufacture
If waterproof structures are overlaid without clearance compensation, then assembly is simplified, but water infiltration occurs through small clearances
Solution Approach 1:
The small passage acts as an intermediary element between the overlaying waterproof structures. Instead of requiring tight clearance control or additional sealing components, the small passage mediates the water flow by guiding it into the dead end structure, where water momentum is reduced and water is redirected away from the sealing interface, maintaining waterproofing despite manufacturing clearances.
Data Source
AI summary
An object of the present invention is to provide a waterproof box capable of improving waterproof performance, and workability and space-saving. The washing water hits the lower face of the first waterproof part in the upper cover, and the upper cover is uplifted, at this time the tapered outer face and the inner face in the first waterproof part and are abutted and engaged to each other, causing the inlet of the small passage to close. Even if water infiltrates, the water infiltrates into the dead end to let the momentum thereof reduce. Further, the water infiltrates into the dead end let the momentum thereof reduce. The water its momentum have been reduced falls. Consequently, it is effective for enhancing waterproof performance to include the dead end.