Corrugated Metal Pipe Fitting With Deformable Clamping Ring Sealing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing pipe fittings for corrugated metal pipes are complex, require multiple parts, and often result in incomplete sealing and sharp edges on cut pipes, posing assembly risks and leakage issues.
Innovation Solution
A simplified pipe fitting design comprising a screw-in nipple, a deformable cylindrical clamping ring, and a union nut with matching threads, where the clamping ring adapts to the pipe shape during assembly, ensuring a pressure-tight connection and rounded pipe ends without sharp edges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a traditional pipe fitting design with multiple parts is used, then the connection can be achieved, but the device complexity increases and assembly becomes more difficult
Solution Approach 1:
The patent combines multiple traditional components (clamping ring, sealing element, and positioning features) into a single integrated pipe fitting component. This merging reduces the total number of parts and simplifies the assembly process while maintaining the necessary functions of clamping, sealing, and positioning.
Solution Approach 2:
The pipe fitting is designed to perform multiple functions simultaneously: it provides mechanical clamping of the corrugated pipe, creates a pressure-tight seal, and ensures proper positioning through its geometric features. This multi-functionality eliminates the need for separate components for each function.
2Reliability
If the pipe fitting uses rigid connection components, then structural strength is maintained, but sealing effectiveness decreases
Solution Approach 1:
The pipe fitting incorporates a deformable clamping ring that changes its physical state from a rigid cylinder to a deformed shape during assembly. This parameter change allows the ring to conform to the corrugated pipe surface, creating effective sealing contact while maintaining sufficient mechanical strength through the deformation process.
3Reliability
If the clamping ring is made deformable to adapt to pipe shape, then sealing improves, but the ring may be damaged during assembly
Solution Approach 1:
The pipe fitting design incorporates geometric features such as chamfers and rounded edges that guide the deformable clamping ring during assembly. These features cushion the deformation process, distributing stresses evenly and preventing localized damage to the ring while ensuring proper adaptation to the pipe shape for effective sealing.
4Adaptability or versatility
If the pipe fitting is designed for reusable connections, then operational flexibility increases, but assembly precision requirements increase
Solution Approach 1:
The pipe fitting incorporates pre-formed geometric features including chamfers, rounded edges, and specific profile shapes that guide the assembly process. These preliminary structural actions ensure that even with minor variations in pipe dimensions, the fitting achieves proper alignment and sealing on repeated assemblies, maintaining precision without requiring high manufacturing tolerances.
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 design allows for reusable, leak-proof connections with reduced assembly risks and no pipe over-stretching, using fewer parts and ensuring safe, efficient assembly with minimal material deformation.
Implementation Method 1
the clamping ring as one of the screw-in nipple deformable ring is formed, which causes a pressure-tight connection
Data Source
Figure 1
Figure 2
AI summary
The union (1) has a clamping ring (5) for clamping a metal corrugated pipe (2), and a screw-in-fitting (3) and a connecting nut (4) comprising thread regions fitted to each other. The ring is formed as a cylindrical ring that is deformable from the screw-in- fitting. The ring has an inner diameter (D2) that is identical with an inner diameter (D1) of the nut. The nut comprises a collar (16) as a stopper at an end (18) of the ring, where breadth (B1) of the collar corresponds to wall thickness (S1) of the ring, which is made of heat treated metal alloy.