Liquid Pressure-Feed Device Sub-Arm Window Design
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Solution Overview
Problem
Conventional liquid pressure-feed devices face obstruction issues when the third shaft is positioned between the pivot shaft and the second shaft, hindering the movement of the third shaft due to the sub-arm's obstruction.
Innovation Solution
The third shaft is placed between the pivot shaft and the second shaft, with a window formed in the sub-arm to prevent obstruction, allowing for reduced device size and unimpeded movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the third shaft is positioned between the pivot shaft and the second shaft, then the device size is reduced, but the sub-arm obstructs the movement of the third shaft
Solution Approach 1:
The sub-arm is segmented by forming a window (opening) in it, which divides the sub-arm structure into parts that allow the third shaft to pass through or move alongside without obstruction. This segmentation resolves the spatial conflict between the sub-arm and third shaft while maintaining the compact arrangement.
Solution Approach 2:
The third shaft is positioned within the spatial envelope defined by the pivot shaft and second shaft, with the window in the sub-arm allowing the third shaft to nestle in the available space without interference. This nested arrangement achieves compact device size while avoiding obstruction.
2Device complexity
If the third shaft is positioned between the pivot shaft and the second shaft, then the device structure is compact, but the sub-arm creates obstruction
Solution Approach 1:
The sub-arm is segmented by forming a window (opening) in it, which divides the sub-arm structure into parts that allow the third shaft to pass through or move alongside without obstruction. This segmentation resolves the spatial conflict between the sub-arm and third shaft while maintaining the compact arrangement.
Solution Approach 2:
The window in the sub-arm acts as an intermediary space that mediates between the sub-arm structure and the third shaft movement, allowing both to coexist without harmful interaction while maintaining the compact device structure.
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
This configuration enables the third shaft to be disposed between the pivot and second shaft without obstructing the third shaft's movement, achieving a compact design and improved operational efficiency.
Implementation Method 1
a spring mounted between the first and second shafts
Data Source
AI summary
A liquid pressure-feed device is provided wherein, even with a third shaft disposed between a pivot shaft and a second shaft, a sub-arm positioned between the pivot shaft and the second shaft does not obstruct movement of the third shaft. A snap mechanism has a pivot shaft supported within a closed vessel, a float arm and a sub-arm both adapted to rotate about the pivot shaft, a first shaft supported by the float arm, a second shaft supported by the sub-arm, and a spring mounted between the first and second shafts. A liquid discharge valve has a third shaft supported by the float arm, a liquid discharge valve arm mounted to the third shaft, and a liquid discharge valve body mounted to the liquid discharge valve arm to establish and block communication between the interior of the closed vessel and a liquid discharge port. The third shaft is disposed between the pivot shaft and the second shaft and a window is formed in the sub-arm so as not to obstruct movement of the third shaft.