Threaded Ring-Segment Clamp for Low-Torque Pipe Coupling
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Solution Overview
Problem
Conventional connection devices, such as Tri-Clamp connections, require manual strength or additional tools to achieve sufficient compression force between line portions, complicating and slowing down the installation process.
Innovation Solution
Incorporating axial thread means on the line portion and ring segments, allowing for interlocking threads to generate additional axial force when the connection clamp is rotated, reducing the manual torque required for a tight connection without the need for tools or modifications to the second line portion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If manual strength is used to press the free ends of ring segments against each other, then the compression force between line portions can be achieved, but the installation process becomes complicated and slow
Solution Approach 1:
The patent changes the physical state of the connection clamp by introducing a pivotable ring-segment chain that can transform from an open configuration to a closed ring form. This parameter change enables the clamp to generate compression force through its own mechanical transformation rather than relying on manual pressing, thereby improving ease of operation while maintaining sufficient compression force
Solution Approach 2:
The connection clamp transitions from a static structure to a dynamic one by incorporating pivotable ring segments that can move relative to each other. This dynamic capability allows the clamp to be easily opened for installation and automatically generate compression force when closed, resolving the contradiction between ease of operation and compression force generation
2Force
If additional tools are used to enhance manual strength, then the compression force can be increased, but the installation process becomes more complicated
Solution Approach 1:
The connection clamp is designed to be self-sufficient by incorporating the pivotable ring-segment chain mechanism that automatically generates compression force when the free ends are connected. This self-service capability eliminates the need for additional tools to enhance manual strength, thereby reducing device complexity while maintaining adequate compression force for secure connections
3Force
If the clamp is folded around the abutment flanges, then the clamping force is generated, but the manual torque required is high
Solution Approach 1:
The pivotable ring-segment chain introduces dynamic movement that transforms the clamping action from a high-torque folding motion to a low-torque connection process. As the ring segments pivot into place, the geometry of the mechanism automatically generates the necessary clamping force with minimal manual torque, resolving the contradiction between force generation and energy input
4Stability of the object's composition
If the free ends of ring segments are latched to give a ring-form connection clamp, then the clamp is held in folded-shut state, but the compression force depends on manual strength
Solution Approach 1:
The latching mechanism for the free ends is designed to work in conjunction with the pivotable ring-segment chain to create a self-sustaining system. When the ring form is achieved, the geometry of the pivoted segments maintains the compression force without continuous manual input, thereby achieving both stable clamp state and sufficient compression force independent of manual strength
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
Enables increased compression force on abutment flanges with lower manual torque, simplifying the connection process and maintaining a secure seal without the use of tools or additional locking devices.
Implementation Method 1
each ring segment has a radially inwardly projecting clamping flange and second thread means, which are spaced apart axially from said clamping flange and correspond to the first thread means
Data Source
AI summary
A connection device has a line portion having, at its end, a radially outwardly projecting abutment flange for abutting against a corresponding abutment flange of a further line portion which is to be coupled to the line portion, and a ring-segment chain comprising a plurality of ring segments connected to one another in a pivotable manner in a common ring plane, wherein the ring-segment ends which form the chain ends can be latched to one another to give a ring-form connection clamp. The line portion is designed in the form of a tubular connection stub with first thread means spaced apart axially from the abutment surface of its abutment flange and in that each ring segment has a radially inwardly projecting clamping flange and second thread means, which are spaced apart axially from said clamping flange and correspond to the first thread means.