Elastically Deformable Safety Ring for Pipe Coupling
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Solution Overview
Problem
Existing coupling elements for removable pipe junctions require multiple parts, including a solid steel safety ring and spring, to ensure safety and locking functions, making them complex and difficult to implement.
Innovation Solution
A female coupling element with an elastically deformable safety ring that transitions between configurations to block or allow passage of a projecting part, eliminating the need for a spring and anti-rotation lugs, featuring a locking ring with grooves and notches for secure axial locking and a safety ring made of synthetic material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a solid steel safety ring with spring and anti-rotation lugs is used, then the safety and locking function is reliable, but the device complexity increases
Solution Approach 1:
The patent combines the safety ring and locking ring into a single integrated component. The safety ring incorporates both the safety function (blocking projecting parts) and locking function (securing the connection) that were previously separated into multiple parts including a solid steel safety ring, spring, and anti-rotation lugs. This merging reduces the number of parts while maintaining reliable safety and locking functions through the elastic deformable member's ability to transition between blocking and permissive configurations.
Solution Approach 2:
The safety ring is designed as a multi-functional component that simultaneously provides safety blocking, locking, and anti-rotation functions. The elastic deformable member within the safety ring can block the passage of projecting parts in one configuration and allow passage in another configuration, eliminating the need for separate springs and anti-rotation lugs. This universal design maintains reliable safety functions while reducing device complexity.
2Reliability
If multiple parts are used to ensure safety function, then the safety is reliable, but the ease of manufacture decreases
Solution Approach 1:
The patent merges multiple manufactured components (safety ring, spring, anti-rotation lugs) into a single integrated safety ring with an elastic deformable member. This reduces the number of manufacturing operations, assembly steps, and quality control checkpoints required, thereby improving ease of manufacture while maintaining reliable safety function through the integrated design.
Solution Approach 2:
The safety ring incorporates an elastic deformable member that can be made from composite materials or materials with specific elastic properties. This allows the single component to exhibit both rigid structural characteristics for safety blocking and flexible deformation characteristics for automatic locking, eliminating the need to manufacture and assemble multiple separate parts with different material properties.
3Reliability
If a spring and anti-rotation lugs are included, then the locking function is secure, but the device complexity increases
Solution Approach 1:
The patent extracts and eliminates the spring and anti-rotation lugs from the traditional multi-part design. The locking function previously provided by these separate components is now integrated into the safety ring through the elastic deformable member, which automatically transitions between configurations to provide both safety blocking and secure locking without requiring additional parts.
Solution Approach 2:
The elastic deformable member in the safety ring provides self-service locking functionality. It automatically transitions between blocked and permissive configurations based on the presence and position of projecting parts from the first element, eliminating the need for separate springs and anti-rotation lugs to provide these functions. The safety ring essentially locks itself through the elastic deformation and recovery of its member.
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 a simplified and reliable locking mechanism that is automatic and efficient, reducing the complexity of connection and disconnection processes while maintaining secure locking and safety.
Implementation Method 1
the member is elastically deformable between the first configuration and the second configuration by radial deformation
Data Source
Figure 1~2
Figure 3~4
Figure 5~7
AI summary
This female connecting element (4) adapted for the removable joining of pipes, said element being suitable for fitting with a male element (2) along a longitudinal axis (XX) of the element, comprises: - a body (12), - a locking ring (14) integral in translation with the body and having at least one groove (141), suitable for receiving a radially projecting part (8) of the second element, and at least one locking notch (145), suitable for receiving the projecting part (8) in a configuration where this part is axially locked along the longitudinal axis, and - a safety ring (16) superimposed at least in part on the locking ring, characterized in that the safety ring (16) comprises at least one elastically deformable member (161),between a first configuration in which the member (161) blocks the passage of a protruding part (8) of the second element (2) from a locking notch (145) and a second configuration in which the member allows this passage.