Articulating Clamp Segments for Flexible Sanitary Fittings
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Solution Overview
Problem
Conventional clamps designed for rigid sanitary fittings fail to effectively clamp flexible, disposable fittings due to uneven pressure distribution and mechanical assembly complexities, leading to leaks and damage.
Innovation Solution
A single-piece, flexible clamping device with articulating segments and a cable tie for even compression, utilizing non-load-bearing hinges and a central groove to distribute force radially and axially, accommodating irregular fitting profiles and ensuring consistent contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional rigid clamps are used on rigid sanitary fittings, then high precision tolerances and symmetrical mating profiles can be achieved, but the clamps fail to effectively clamp flexible, disposable fittings due to uneven pressure distribution
Solution Approach 1:
The clamp is divided into multiple articulated segments that can independently adjust to conform to the fitting profile. This segmentation allows the rigid clamp structure to adapt to flexible fittings by distributing compression forces across multiple contact points, resolving the contradiction between maintaining structural integrity and adapting to deformable surfaces.
Solution Approach 2:
The clamp transitions from a static rigid structure to a dynamic articulated mechanism that can adjust its configuration. The segments can rotate relative to each other, allowing the clamp to dynamically adapt to the fitting's shape and maintain even pressure distribution, thereby achieving both reliability and adaptability.
2Ease of operation
If multiple sub-components are used in clamp construction, then assembly and adjustment are possible, but mechanical construction and assembly compromise the operating effectiveness of the assembled clamp
Solution Approach 1:
Multiple functional components (clamp body, segments, hinges, and fastening mechanism) are merged into a single integrated articulated structure. This merging eliminates assembly errors and structural weaknesses associated with multiple separate components, while the integrated design maintains the necessary degrees of freedom for effective clamping operation.
3Ease of manufacture
If load bearing hinges are used in rigid clamps, then the clamp structure can be assembled, but excessive pressure is created in the main portion of the clamping body away from the hinge and clasp areas, causing gasket damage and leaks
Solution Approach 1:
The clamp segments are designed with different local properties - the articulated joints allow rotation to redistribute pressure, while the contact surfaces are designed for optimal pressure distribution. This local differentiation ensures that pressure is evenly distributed across the gasket area, preventing the excessive pressure concentration that occurs in traditional hinge-based clamps.
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
The solution provides even compression and sealing across flexible sanitary fittings under dynamic loads, reducing leaks and assembly complexity, while being cost-effective and suitable for high-purity applications.
Implementation Method 1
Clamping leverage is produced by a central groove under the center of the contact area between the cable tie and flexible clamping segment. This groove concentrates the cable tie's compression force outward from the central groove, compounding the closing force generated by the cable tie.
Implementation Method 2
The clamping device is generally circular in shape and converts concentric compression into radial and axial linear closure force on the sanitary fitting body.
Implementation Method 3
The clamp segment contour deformation disperses compression force evenly across the surface contact area of the clamping device, compensating for surface irregularities of the sanitary fitting. The clamp segment 'molds' into the shape of the fitting profile, producing a consistent surface contact area between the clamping body and sanitary fitting.
Data Source
AI summary
A clamping device, having a plurality of clamp segments, each clamp segment, having an arcuate base, each arcuate base having an interior side and an exterior side, a first pair of sidewalls extruding radially inward from the interior side of the arcuate base, thereby defining an interior channel, wherein the sidewalls are conformable to a fitting inside the interior channel, a second pair of sidewalls extruding radially outward from the exterior side of the arcuate base, thereby defining an exterior channel, wherein each clamp segment is interconnected with at least one other clamp segment by a hinge; and a cable tie to keep the plurality of clamp segments in a closed configuration.