Segmented Funnel with Bayonet Mount for Specimen Collection
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Solution Overview
Problem
Existing segmented funnels used for collecting fish and other specimens often snag or get wedged during withdrawal, leading to reduced lifespan and inadequate user protection, and handling strap attachments can be insecure and heavy.
Innovation Solution
The design incorporates a segmented funnel with a mounting system that includes a bayonet action, quick-release clips, and notches to prevent snagging and wedging, along with a secure cord connection using a washer for stress relief and protection, allowing for easy assembly and use with various container types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a segmented funnel is used for specimen collection, then the one-way containment function is improved, but the mechanism gets wedged between segments during withdrawal
Solution Approach 1:
The funnel is divided into multiple segmented sections that can flex independently. This segmentation allows the funnel to expand when a specimen is inserted and then return to its original closed position, preventing the catching mechanism from getting wedged during withdrawal while maintaining the one-way containment function.
Solution Approach 2:
The funnel transitions from a static rigid structure to a dynamic flexible structure that can change its shape and opening size. The flexible segments allow the funnel to adapt its configuration during specimen insertion and withdrawal, enabling smooth operation without wedging while maintaining containment reliability.
2Ease of operation
If the funnel segments are made flexible to prevent wedging, then the ease of operation is improved, but the structural strength decreases
Solution Approach 1:
The funnel is constructed using flexible materials that can bend and deform elastically to allow mechanism withdrawal, while the overall structural integrity is maintained through the distributed segment design and material properties. The flexible segments act as thin-walled structures that provide both flexibility and sufficient strength.
3Ease of operation
If handling straps are added to the containment unit, then the ease of operation is improved, but the weight increases
Solution Approach 1:
Elastic loops made from flexible material are used instead of traditional rigid straps. These elastic loops provide the necessary handling and mounting functionality while being significantly lighter than conventional strap attachments, reducing the overall weight of the containment unit.
Data Source
AI summary
The present device is a specimen containment unit comprising; a container, wherein the container has a first portion of a locking mechanism positioned distal to an opening, and a funnel having a base and a plurality of segments attached to the base and a second portion of a locking mechanism integrated into the base, wherein the segments protrude a predetermined distance and angle from the base, wherein the first portion of the locking mechanism is designed to mate with the second portion of the locking mechanism to secure the funnel to the container.