Quick Connector Push-In Inhibition Segmentation
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Solution Overview
Problem
Conventional quick connectors face issues with preventing retainer push-in movements when the pipe is not at the regular position, allowing for excessive axial movement and retainer instability due to slits between come-off preventing legs and attitude control legs, and require enhanced come-off preventing force from temporary come-off preventing portions.
Innovation Solution
A quick connector design featuring a retainer with paired first and second legs, each equipped with push-in inhibiting protrusions that prevent movement from the initial to the confirmation position, and an annular boss locking mechanism to secure the pipe at the regular position, ensuring the retainer only moves when the pipe is correctly inserted, thereby preventing axial movement and enhancing come-off prevention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If push-in inhibiting protrusions are disposed on the leading-end side of the paired come-off preventing legs, then the retainer is inhibited from being pushed in when the pipe is not at the regular position, but the retainer may still be pushed in when the pipe is at a midway position because the protrusions are not locked with the connector body
Solution Approach 1:
The come-off preventing legs are divided into multiple segments: paired first legs with temporary come-off preventing portions and paired second legs with actual come-off preventing portions. Each segment has specific push-in inhibiting protrusions that engage with corresponding structures at different positions, creating staged locking mechanisms that prevent push-in at various insertion stages.
Solution Approach 2:
The push-in inhibiting protrusions are pre-positioned on the come-off preventing legs before pipe insertion. When the pipe is inserted to the regular position, these protrusions automatically engage with the connector body structures in advance, preventing any subsequent push-in movement before the retainer reaches the confirmation position.
2Stability of the object's composition
If the annular boss is interposed between the temporary come-off preventing portions and push-in inhibiting protrusions, then the axially movable magnitude is small when the retainer is at the initial position, but the axially movable magnitude becomes large when the retainer is at the confirmation position
Solution Approach 1:
The annular boss acts as an intermediary element between the temporary come-off preventing portions and the push-in inhibiting protrusions. When the retainer is at the initial position, the annular boss is interposed between these components, limiting axial movement. When the retainer moves to the confirmation position, the locking relationship changes, allowing greater axial movement while maintaining stability through the locked state.
3Ease of operation
If slits are formed between the attitude control legs and paired come-off inhibiting legs, then the retainer can move from initial to confirmation position, but the retainer becomes rickety at the initial position
Solution Approach 1:
The slits between the attitude control legs and paired come-off inhibiting legs create a dynamic structure that adapts to different operational states. At the initial position, the legs maintain close proximity providing stability. During movement to the confirmation position, the slits allow necessary flexibility and motion. The structure transitions from a stable closed state to a flexible open state and back to a stable locked state.
Data Source
AI summary
A quick connector includes paired first legs having a first push-in inhibiting protrusion, and paired second legs having a second push-in inhibiting protrusion. Although the first push-in inhibiting protrusions inhibit the push-in movements of a retainer in a state before a pipe is inserted, they do not inhibit the push-in movements of the retainer in such another state as the pipe is located at a midway position. The second push-in inhibiting protrusions inhibit the push-in movements of the retainer in the other state where the pipe is located at the midway position.