Nested Pin Fluid Connector for Compact Locking and Unlocking
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Solution Overview
Problem
Existing fluid connectors require separate blind holes for unlocking and locking guiding rods, occupying excessive space and inefficiently utilizing the shell's volume.
Innovation Solution
A fluid connector design where a first pin is accommodated in a pin hole and a second pin is movable within the same pin hole, sharing space and allowing for a locking and unlocking mechanism, with a driving member to control the valve core's rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two separate blind holes are provided for unlocking and locking guiding rods, then the locking and unlocking functions are achieved, but the space occupied in the shell increases
Solution Approach 1:
The second pin is nested inside the first pin, with the second pin's guiding rod portion located within the inner cavity of the first pin's guiding rod. This nesting arrangement allows both pins to share the same pin hole space, significantly reducing the volume occupied in the shell while maintaining both locking and unlocking functions.
Solution Approach 2:
The patent merges the functions of two separate pins into a shared pin hole structure. The first pin and second pin both occupy the same pin hole, with their respective guiding rods working in coordinated fashion. This combining approach eliminates the need for two separate blind holes, reducing space occupation while achieving reliable locking and unlocking operations.
2Reliability
If two separate blind holes are provided for unlocking and locking guiding rods, then the locking and unlocking functions are achieved, but the shell structure becomes more complex
Solution Approach 1:
The nested configuration of the second pin within the first pin simplifies the shell structure by eliminating the need for two separate blind holes. The outer wall of the first pin serves as the boundary for both pins, reducing structural complexity while maintaining functional reliability.
Solution Approach 2:
The shared pin hole structure serves multiple functions: it accommodates both the first pin for locking operations and the second pin for unlocking operations. This multi-functional design reduces the overall structural complexity compared to having separate dedicated holes for each function.
Data Source
AI summary
A fluid connector includes a second pin accommodated in a first pin. Prior to mating of the fluid connector and a complementary connector, a front end of the first pin protrudes forward out of the pin hole, the second pin is located within the pin hole, and a front end of the second pin is accommodated in the accommodating slot. When the fluid connector is mated with the complementary connector, the complementary connector abuts against the first pin, such that the first pin moves backward within the pin hole, and the front end of the second pin moves forward until it is accommodated in the complementary connector. The first pin and the second pin share the same pin hole, and the second pin occupies at least a portion of the inner space of the first pin, thereby facilitating saving the space of the shell.