Split Stopper Ring Pipe Joint for Anti-Slip Retention
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Solution Overview
Problem
Conventional spigot-and-socket pipe joints face complications in installation due to complex stopper fixation methods, susceptibility to corrosion, and high costs, with stoppers prone to disengagement and reduced connection strength due to incomplete annular structures.
Innovation Solution
A spigot-and-socket pipe joint with a split-type stopper ring and elastic supports that are installed in the stopper chamber before the spigot is inserted, eliminating the need for external locking members and ensuring a complete annular wall for enhanced strength, using elastic supports to maintain the stopper ring's position and prevent slipping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If steel strip or locking members are used to fix the stoppers, then the stoppers are prevented from dropping out, but the installation steps increase and the locking members are prone to corrosion
Solution Approach 1:
The patent removes the steel strip and locking members from the system entirely. Instead of using external fastening components, the stoppers are designed with self-retaining features where the anti-slip bosses engage with the socket's annular wall and the stopper mounting grooves provide mechanical retention, eliminating the need for separate locking mechanisms.
Solution Approach 2:
The stoppers are designed to be self-fixing through their own structural features. The anti-slip bosses on the stoppers engage with the axial inner incline of the socket's annular wall, and the stopper mounting grooves provide inherent retention, allowing the stoppers to secure themselves without external locking members.
2Reliability
If steel strip is used to fix the stoppers, then the stoppers are secured, but the steel strip loosens or breaks due to axial movements and corrosion
Solution Approach 1:
The patent eliminates the steel strip and locking members from the system. The stoppers are retained through their own structural features including anti-slip bosses that engage with the socket and stopper mounting grooves, removing the component subject to corrosion and mechanical failure.
Solution Approach 2:
The stoppers secure themselves through self-retaining mechanisms where the anti-slip bosses engage with the socket's annular wall and the stopper mounting grooves provide inherent mechanical retention, eliminating dependency on external locking members that can corrode or fail.
3Ease of operation
If stopper mounting grooves are provided in the annular wall, then the stoppers can be installed, but the annular wall becomes incomplete and connection strength is reduced
Solution Approach 1:
The patent applies local quality by providing stopper mounting grooves only in specific localized areas of the annular wall where stoppers need to be installed, rather than making the entire annular wall incomplete. The grooves are strategically positioned to accommodate stoppers while preserving the overall structural integrity and strength of the annular wall.
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 simplifies installation, prevents stopper disengagement, reduces corrosion risks, and enhances connection reliability and strength, while minimizing operational complexity and costs.
Implementation Method 1
a stopper ring having a split structure and comprising a plurality of stoppers and a plurality of elastic supports
Data Source
Figure 1a~1b
Figure 2a~2c
Figure 3a~3b
AI summary
Disclosed is a spigot-and-socket pipe joint. A stopper ring of the joint has a split structure comprising a plurality of stoppers (1). Two or more fixing holes are provided in the face of the outer diameter of each stopper for installing an elastic support (5). During installation, the stoppers are first installed in a stopper chamber one by one to form a whole and finally a spigot is installed into a socket. During the installation, a spigot projection can push the stopper to move backwards and compress the elastic support on the stopper ring when passing through the stopper ring, and the spigot projection would pull the spigot back after passing through the stopper ring, so that the stopper presses against the outer surface of the spigot by the elastic support. The spigot-and-socket pipe joint in the invention has simple structure, convenience in installation and disassembly, strong anti-slip capability and wide application.