Ultrasonic Probe Case Convex-Depressed Locking Mechanism
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Solution Overview
Problem
Existing ultrasonic probe cases with adhesive fixation are prone to level differences and accidental detachment due to adhesion slip, leading to potential operator mishandling.
Innovation Solution
The ultrasonic probe case design incorporates a grip case with convex portions and a head case with depressed portions that engage to form a secure lock, preventing level differences and accidental detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the grip case and head case are fixed with adhesive, then the cases can be assembled, but level difference occurs at the seam and the adhesive portion is easily peeled off by impact
Solution Approach 1:
The adhesive bonding interface is segmented into multiple discrete engagement points through convex portions and corresponding depressed portions. These segmented engagement points distribute mechanical stress across multiple locations rather than relying on a continuous adhesive layer, preventing peeling at impact points while maintaining assembly simplicity.
Solution Approach 2:
The connection mechanism transitions from a two-dimensional adhesive surface to a three-dimensional mechanical interlocking structure. Convex portions protruding from the grip case engage with depressed portions in the head case, creating depth-based mechanical locks that resist peeling forces in the third dimension (perpendicular to the case surfaces).
2Ease of operation
If the grip case and head case are made attachable/removable, then the cases can be disassembled, but the cases are easily detached accidentally by operator pushing
Solution Approach 1:
The convex portions and depressed portions are designed with asymmetric geometry where the insertion direction is facilitated but the removal direction is resisted. The convex portions have tapered leading edges that guide insertion, while the engagement interface creates mechanical interference that prevents accidental removal, requiring deliberate action to disassemble.
Solution Approach 2:
The mechanical engagement structure incorporates preliminary anti-action by designing the convex-depressed portion interface to automatically resist removal forces. The geometry of the engagement points creates inherent mechanical locks that counteract accidental pushing or pulling forces before the operator can initiate disassembly, while still allowing intentional removal when needed.
Data Source
AI summary
An outer case for an ultrasonic probe that houses a module of the ultrasonic probe is provided. The outer case includes a grip case gripped by a user and a head case that engages with the grip case. The grip case has a first engaging portion where one or a plurality of convex portions are disposed. The head case has a second engaging portion where one or a plurality of depressed portions are disposed at positions where the one or plurality of depressed portions engage with the one or plurality of convex portions. The convex portion and the depressed portion are engaged to be locked.