Additively Manufactured Pipe Coupling With Integral Locking
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing pipe joining methods are prone to leaks and increased complexity due to the use of additional fasteners and irreversible joining techniques, such as solder or welded joints, which can lead to failure points and complicate assembly and disassembly processes.
Innovation Solution
A two-part coupling system with integral coupling features, designed for additive manufacturing, that eliminates the need for external fasteners by using a locking and release mechanism integrated into the parts, allowing for reversible connection and disconnection without additional tools, and is capable of withstanding high pressures and maintaining fluid integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional joining methods (flanges, bolts, welds) are used to connect pipes, then the connection is strong and reliable, but the system complexity increases and additional failure points are introduced
Solution Approach 1:
The coupling integrates multiple functions (sealing, locking, alignment) into a single monolithic structure. The first coupling part includes integrated sealing surfaces, locking features, and alignment elements, eliminating the need for separate gaskets, fasteners, and alignment components that would otherwise be required in traditional flanged or welded connections.
Solution Approach 2:
The coupling is divided into two separable parts (first coupling part and second coupling part) that can be assembled and disassembled independently. This segmentation allows the pipes to be joined without permanent welding while maintaining connection integrity, and enables easy disassembly for maintenance or reconfiguration without damaging the pipes or coupling components.
2Strength
If irreversible joining methods (soldering, welding) are used, then the connection is permanent and strong, but the joining becomes irreversible and repair difficult
Solution Approach 1:
The coupling employs a dynamic locking mechanism with movable locking features that can transition between engaged and disengaged states. The locking elements are designed to maintain a strong locked position during operation, yet can be easily released by applying a simple actuating force, enabling reversible connection without compromising joint strength during the connected state.
Solution Approach 2:
The coupling includes self-aligning features and self-latching mechanisms that automatically position and secure the two coupling parts when brought together. The alignment surfaces and geometric constraints guide the parts into proper orientation, while the locking features automatically engage to secure the connection, eliminating the need for complex alignment procedures or specialized tools during assembly or disassembly.
3Reliability
If multiple fasteners and additional parts are introduced for pipe assembly, then the connection can be secured, but the number of parts increases and manufacturing complexity increases
Solution Approach 1:
The coupling integrates multiple functions (sealing, locking, alignment) into a single monolithic structure. The first coupling part includes integrated sealing surfaces, locking features, and alignment elements, eliminating the need for separate gaskets, fasteners, and alignment components that would otherwise be required in traditional flanged or welded connections.
Solution Approach 2:
The monolithic coupling structure performs multiple functions simultaneously: it provides sealing surfaces for fluid-tight connections, incorporates locking features for secure attachment, and includes alignment elements for proper positioning. This multi-functionality eliminates the need for multiple separate components, reducing part count and simplifying both manufacturing and assembly processes.
Data Source
AI summary
A two-part coupling for use in joining sections of pipe without additional fasteners is disclosed. The two-part coupling includes integral coupling features molded by additive manufacturing technology. The two-part coupling increases reliability, reduces weight, and provides ease of manufacture. The coupling distributes a fluid load so that the coupling can withstand pressures and leak rates in accordance with stringent standards. The two-part coupling can be coupled and de-coupled using a locking and release mechanism built into the integral parts. Assembly is made easier because the geometry of the coupling is amenable to additive manufacturing. Because the two-part coupling requires a lesser degree of precision, machined parts are not required.