Stopper Grip Ring With Slit Sharpened Edge
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Solution Overview
Problem
Existing stopper grip rings for plumbing pipes cause damage or abnormal deformation to O-rings when used, and require additional components or complex shaping, increasing costs and labor in pipe connection processes.
Innovation Solution
A stopper grip ring with an outer ring shape, featuring an O-ring supporting portion with an inclined entry inducing portion and an inserting portion, and a stopper portion with a sharpened edge divided by slits, forming an acute angle to prevent O-ring damage and separation, reducing the need for a separating ring and simplifying the connection process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a stopper grip ring is made narrower or broader, then the grip strength or positioning accuracy is improved, but the O-ring is damaged by the end portion of the stopper grip ring
Solution Approach 1:
The stopper grip ring is divided into multiple functional segments: a grip portion with external ribs for gripping the pipe, and a separate end portion with a reduced diameter. This segmentation allows the grip portion to provide strong gripping force while the reduced diameter end portion prevents O-ring damage by avoiding excessive contact pressure.
Solution Approach 2:
Different portions of the stopper grip ring have different diameters tailored to their specific functions. The grip portion has a larger diameter for effective pipe gripping, while the end portion has a reduced diameter to minimize contact pressure on the O-ring, preventing damage while maintaining grip effectiveness.
2Object-affected harmful factors
If a separating ring is disposed between the stopper grip ring and the O-ring, then O-ring damage is prevented, but the number of components and costs increase
Solution Approach 1:
The protective function previously requiring a separate separating ring is merged into the stopper grip ring itself by designing the end portion with a reduced diameter. This integrated design eliminates the need for additional components while maintaining the protective function against O-ring damage.
Solution Approach 2:
The stopper grip ring's own structure (reduced diameter end portion) provides the protective function against O-ring damage, eliminating the need for external protective components. The design serves its own protective need through its geometric configuration.
3Manufacturing precision
If a seat for receiving the O-ring is independently formed at the connector socket, then O-ring positioning is improved, but the forming process becomes difficult and requires special jigs and tools
Solution Approach 1:
Instead of forming a complex independent O-ring seat in the connector socket, the stopper grip ring is designed with a reduced diameter end portion that naturally creates the necessary positioning geometry. This inverts the approach by using the stopper grip ring's geometry rather than the connector socket's geometry to achieve proper O-ring positioning.
Data Source
AI summary
A stopper grip ring for plumbing pipes. A stopper grip ring for plumbing pipes, according to an exemplary embodiment of the present disclosure, includes: an outer circumferential portion which forms an outer diameter of a ring shape; an O-ring supporting portion formed to be bent at one side of the outer circumferential portion so as to come into contact with an O-ring and having an entry inducing portion which is formed to be inclined at one end portion, and an inserting portion which is formed at the other end portion and enters while being induced by the entry inducing portion; and a stopper portion formed to be bent at the other side of the outer circumferential portion so as to be spaced apart from the O-ring supporting portion and having a sharpened portion which is formed at an edge and is divided by a plurality of slits.