Clamping Ring Structure for Stable Pipe Fitting Insertion
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Solution Overview
Problem
Existing clamping rings used in fittings for sealing pipes from the outside, particularly with small nominal diameters, suffer from instability due to incompletely closed ring shapes and axial slots, leading to incorrect positioning during insertion.
Innovation Solution
A clamping ring design featuring a circumferentially closed mounting ring with pivotably connected functional elements that are elastically movable radially inward, providing improved stability and correct positioning within the fitting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If an incompletely closed ring shape with axial slots is used for the clamping ring, then the ease of insertion is improved, but the stability and positioning accuracy deteriorate
Solution Approach 1:
The clamping ring is divided into a closed mounting ring and separate functional elements that can be independently positioned. The functional elements are pivotably connected to the mounting ring, allowing them to be compressed for insertion while maintaining stability when engaged with the pipe
Solution Approach 2:
The functional elements are designed to be elastically movable radially inward from an initial position, transitioning from a compressed state during insertion to an expanded state during operation. This dynamic behavior allows the clamping ring to adapt between ease of insertion and operational stability
2Stability of the object's composition
If a closed ring shape is used for the clamping ring, then the stability is improved, but the ease of insertion deteriorates
Solution Approach 1:
The clamping ring is divided into a closed mounting ring and separate functional elements that can be independently positioned. The functional elements are pivotably connected to the mounting ring, allowing them to be compressed for insertion while maintaining stability when engaged with the pipe
Solution Approach 2:
The outer diameter of the functional elements changes between an initial expanded position and a compressed position during insertion. This parameter change allows the functional elements to be compressed to fit through the press sleeve while maintaining their stabilizing function when engaged with the pipe
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 enhances the stability and correct positioning of the clamping ring, ensuring a secure and consistent connection of pipes to fittings, even with small nominal diameters, by maintaining defined assembly forces and improved haptic control during insertion.
Implementation Method 1
the functional elements are elastically movable radially inward from an initial position
Data Source
Figure 1~3
Figure 4
Figure 5
AI summary
The invention relates to a clamping ring for a fitting for a pipe to be sealed from the outside, comprising a circumferentially closed mounting ring (3) and a plurality of functional elements (4), wherein the functional elements (4) are designed to hold and/or fix a pipe to be inserted, wherein the functional elements (4) are pivotably connected to the mounting ring (3) on the circumferential side and are elastically movable radially inwards from an initial position, wherein the functional elements (4) define an outer diameter in the initial position which is larger than the outer diameter of the mounting ring (3) and wherein the functional elements (4) are arranged spaced apart from one another in the azimuthal direction in the initial position. The invention also relates to a fitting (40) with a clamping ring (2).The clamping ring solves the problem of specifying a clamping ring and a fitting with such a clamping ring, whereby the insertion is facilitated and the stability of the clamping ring in the fitting is improved.