Sealed Tripod Leg Lock for Fouling-Resistant Waterproofing
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Solution Overview
Problem
Existing tripods face issues with locking mechanisms that are prone to fouling in dirty and salty water conditions, leading to decreased lockup and poor waterproof performance due to abrasion and corrosion of rubber seals, which affects stability and functionality.
Innovation Solution
A locking mechanism with a combination of O-rings and anti-twist sleeves, along with a slit in the yoke to allow air exchange, and a sealed foot structure, prevents fluid ingress and maintains a waterproof seal, using flexible materials and replaceable blocking members to minimize contamination and maintain functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If rubber seals are used in locking mechanisms, then flexibility and initial sealing are improved, but abrasion and corrosion in hostile environments degrade the seal over time
Solution Approach 1:
The patent makes the blocking member (rubber seal) replaceable rather than permanent. Users can inspect the blocking member for wear or fouling and replace it when necessary, restoring waterproof performance without replacing the entire locking mechanism. This addresses the degradation issue by allowing periodic renewal of the consumable sealing component.
Solution Approach 2:
The patent allows removal and replacement of the blocking member from the locking mechanism. When the rubber seal becomes degraded, corroded, or fouled, it can be discarded and a new one installed, thereby recovering the waterproof functionality of the system without discarding the entire assembly.
2Adaptability or versatility
If locking mechanisms are exposed to hostile environments, then portability and usability are improved, but fouling and corrosion decrease lockup reliability
Solution Approach 1:
The blocking member is designed as a replaceable component that can be periodically replaced when fouled or corroded by hostile environments. This allows the locking mechanism to maintain reliability in harsh conditions by renewing the sealing element without redesigning the entire mechanism.
Solution Approach 2:
The locking mechanism is segmented into replaceable components, specifically the blocking member that can be removed and replaced independently. This segmentation allows the sealing function to be maintained by replacing only the affected blocking member rather than the entire locking assembly.
3Reliability
If sealed foot structure is implemented, then waterproof performance is improved, but complexity of assembly increases
Solution Approach 1:
The foot structure is segmented with the blocking member as a separate, pre-formed component that is installed into the foot. This segmentation allows the sealing function to be added without redesigning the entire foot structure, maintaining relative assembly simplicity while achieving waterproof performance.
Solution Approach 2:
The blocking member is provided as a pre-formed sealing component that is installed into the foot structure. This preliminary preparation of the sealing element simplifies the overall assembly process compared to integrating sealing features directly into the molded foot structure.
Data Source
AI summary
A locking mechanism for a tripod.