Pipe Joint Socket Venting to Prevent Plug Jump-Out
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Solution Overview
Problem
Existing press-down type socket and plug connections face difficulties in easy coupling and uncoupling, and there is a risk of the plug unexpectedly separating, leading to fluid leakage during uncoupling.
Innovation Solution
A socket design featuring a cylindrical base with a valve element, a built-in plug part, steel balls, and an O-ring, allowing for airtight, semi-airtight, and non-inserted states, ensuring secure engagement and preventing fluid leakage by releasing pressure through communication holes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a press-down type socket and plug connection is used to facilitate uncoupling, then uncoupling ease is improved, but reliability deteriorates due to risk of unexpected separation and fluid leakage
Solution Approach 1:
The patent applies preliminary action by providing a purging mechanism that activates before complete uncoupling. When the plug is pulled out, the purging mechanism opens communication holes to release compressed air pressure beforehand, preventing unexpected separation caused by pressure buildup during the uncoupling process
Solution Approach 2:
The patent uses an intermediary mechanism (purging mechanism with communication holes) that mediates between the plug and socket during uncoupling. This intermediary system manages fluid pressure independently, allowing smooth separation without direct interference from pressure forces
2Ease of operation
If engagement structure is simplified for easy coupling, then ease of operation is improved, but reliability deteriorates due to poor engagement quality
Solution Approach 1:
The patent applies segmentation by dividing the engagement structure into multiple independent engagement points (multiple engagement protrusions and corresponding recesses). This segmentation provides multiple contact points that distribute engagement forces, ensuring reliable connection while maintaining simple overall structure for easy coupling
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
Facilitates easy coupling and uncoupling while preventing the plug from jumping out during uncoupling, maintaining airtightness and reducing pressure to ensure reliable engagement and fluid management.
Implementation Method 1
an O-ring arranged between the built-in base portion and the built-in plug part
Implementation Method 2
a communication hole formed to penetrate the built-in base portion and causing a space in the built-in base portion and the hole portion of the base portion to communicate with each other
Data Source
AI summary
The present invention provides a socket and a pipe joint which facilitate coupling and uncoupling of the socket and a plug and which can prevent the plug from jumping out of the socket in the uncoupling. In a socket 10 of the present invention, fluid in a built-in plug part 22 is released to the outside via communication holes 40 of a second base portion 18 and a through hole 51 of a third base portion 19 in a semi-inserted state. Accordingly, the pressure in a hole portion 34 does not become excessively high and an engaged part 42 is not unexpectedly pushed upward. Thus, an engagement portion 38 and a second engaged portion 26 can surely engage with each other. Hence, the plug 12 can be prevented from jumping out toward the front end side in the semi-inserted state.