Socket for Pipe Joint with Guide Portion and Collar
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Solution Overview
Problem
Conventional one-touch connection pipe joints experience leakage issues when the plug is inserted obliquely or suddenly pulled out, due to improper engagement of locking elements and valve members, leading to fluid leakage.
Innovation Solution
A socket design with a locking element-pushing portion and locking recess, along with a sleeve-operating element and collar, ensures that the plug is securely locked and unlocked without causing leakage, by guiding the plug's insertion and allowing the collar to rapidly return to its original position upon disengagement, thus maintaining sealing engagement between valve members.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the plug is inserted obliquely into the socket, then the insertion operation is simple, but the collar is pushed undesirably causing the movable valve member to disengage from sealing position resulting in leakage
Solution Approach 1:
The guide portion is provided in advance in the socket to guide the outer peripheral surface of the insert part of the plug during insertion. This preliminary guiding action ensures that even if the plug is inserted obliquely, it will be properly aligned before engaging the collar, preventing unwanted displacement of the movable valve member and maintaining sealing performance
Solution Approach 2:
The guide portion acts as an intermediary element between the plug and the collar. It mediates the insertion process by providing a guiding surface that directs the plug's outer peripheral surface, preventing direct unwanted contact between the plug and collar that would cause valve member disengagement
2Ease of operation
If the plug is suddenly pulled out after the collar has been pushed in to a position where the forward end of the collar disengages from the locking element, then the plug can be removed, but the locking element is displaced radially inward before the collar returns forward resulting in fluid leakage
Solution Approach 1:
The spring is pre-loaded to maintain the collar in the retracted position where it presses the locking element against the inner peripheral surface of the socket body. This preliminary positioning ensures that when the plug is pulled out, the collar is already in the correct position to prevent radial displacement of the locking element, maintaining sealing performance throughout the removal operation
Solution Approach 2:
The spring provides beforehand cushioning by maintaining constant pressure on the collar to keep it in the retracted position. This pre-positioning compensates for any sudden movements during plug removal, ensuring the locking element remains properly positioned and preventing fluid leakage even during rapid operations
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 socket effectively prevents fluid leakage during both connection and disconnection of the plug, ensuring reliable sealing and preventing unwanted displacement of valve members.
Implementation Method 1
a collar (30) provided in the socket body (10) slidably in the longitudinal direction of the socket body (10) and urged forward
Implementation Method 2
the forward end surface of the plug presses and deforms an O-ring 133 provided on the forward end surface of a movable valve member 132
Data Source
AI summary
A socket that receives and locks a plug has a cylindrical socket body, a plug-locking element provided in a first through-hole of the socket, a sleeve-operating element provided in a second through-hole of the socket, a sleeve, and a collar. The collar is movable between a first position (FIG. 1) and a second position where the collar allows radially inward displacement of the sleeve-operating element by the plug inserted into the socket. When the plug is inserted into the socket, first, a locking element-pushing portion of the plug pushes out the plug-locking element into a first recess of the sleeve and causes the plug-locking element to displace the sleeve rearward. As the plug is further inserted into the socket in this state, the plug engages and pushes the collar from the first position to the second position.