Flat Bottle Bottom Movable Wall Pressure Absorption
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Solution Overview
Problem
The existing flat bottle designs lack effective pressure reduction-absorbing properties, leading to difficulties in uniformly distributing stress and deforming under pressure changes.
Innovation Solution
A flat bottle design featuring a cylindrical body with a bottom portion having a grounding portion, a rising circumferential wall, a movable wall, and a recessed circumferential wall, where the lengths of these components are optimized to allow the movable wall to move uniformly, absorbing pressure reductions while preventing deformation of the body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the bottom portion has a flattened shape with optimized length ratios, then the pressure reduction-absorbing property is improved, but the structural complexity increases
Solution Approach 1:
The bottom portion is divided into multiple functional segments: a grounding portion at the outer circumferential edge, a rising circumferential wall portion extending upward, an annular movable wall portion projecting inward, and a recessed circumferential wall portion extending upward from the inner end of the movable wall portion. This segmentation allows each part to perform its specific function in absorbing pressure reductions while maintaining overall structural integrity.
Solution Approach 2:
The movable wall portion is designed to be movable around the connected portion between the movable wall portion and the rising circumferential wall portion, enabling it to move the recessed circumferential wall portion upward during pressure reduction. This dynamic capability allows the bottom portion to adapt to pressure changes, improving the pressure reduction-absorbing property while managing structural complexity through controlled movement.
2Stress or pressure
If the length ratios of the bottom portion and movable wall portion are optimized, then the stress distribution is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The invention specifies precise parameter ranges for optimal performance: the length of the bottom portion along the major axis is set to 1.2 to 2.0 times the length along the minor axis, and the length of the movable wall portion along the major axis is set to 0.8 to 2.5 times the length along the minor axis. These parameter changes ensure uniform stress distribution across the flattened bottom shape while providing clear manufacturing targets that balance precision requirements with performance benefits.
3Reliability
If the movable wall portion is designed to move uniformly, then the pressure absorption capability is improved, but the structural stability decreases
Solution Approach 1:
Different portions of the bottom structure are assigned different properties: the grounding portion provides stable support at the outer edge, the rising circumferential wall portion maintains vertical structure, the movable wall portion provides flexibility for pressure absorption, and the recessed circumferential wall portion creates space for movement. This local differentiation allows the structure to move where needed while maintaining stability where required.
Solution Approach 2:
The movable wall portion is pre-positioned and pre-configured in its initial state, ready to move uniformly when pressure reduction occurs. The connected portion between the movable wall portion and rising circumferential wall portion is pre-designed to facilitate this movement, ensuring that when pressure changes occur, the structure responds in a controlled, uniform manner that absorbs pressure while maintaining overall stability.
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 optimized design enhances the pressure reduction-absorbing property by uniformly distributing stress across the movable wall, allowing it to move and deform effectively, thereby improving the bottle's ability to absorb internal pressure changes without deforming the body.
Implementation Method 1
the pressure reduction-absorbing property of the flat bottle can be improved
Data Source
AI summary
The flat bottle includes a cylindrical body and a bottom closing a lower opening of the body, and is formed in a flattened shape in lateral cross-section having a major axis (La) and a minor axis (Sa). A bottom wall of the bottom includes a rising circumferential wall extending upward; an annular movable wall projecting inward from the rising circumferential wall in a bottle radial direction; and a recessed circumferential wall extending upward from the movable wall. The movable wall is movable around a connected portion with the rising circumferential wall. The length of the bottom along the major axis is 1.2 to 2.0 times the length of the bottom along the minor axis. The length of the movable wall along the major axis is 0.8 to 2.5 times the length of the movable wall along the minor axis.