Pressure-Fed Container Bottom Structure for Stable Liquid Discharge
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Solution Overview
Problem
Existing containers deform and tilt under high internal pressure during pressure-fed liquid discharge, leading to unstable discharge and limited versatility due to the need for specific container supports in feeders.
Innovation Solution
A container design with a cylindrical main body, stepped and rounded bottom, and intermittently positioned elliptical concave portions for engagement with a support base, allowing stable standing without additional feeder supports.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a flat bottom surface is used to enable the container to stand by itself, then the container can stand stably, but the bottom surface bulges and deforms under high internal pressure, causing the container to tilt and become unable to discharge liquid properly
Solution Approach 1:
The bottom surface of the container is designed with a curved shape (specifically, a portion of a rotational paraboloid) rather than a flat surface. This curvature allows the bottom surface to deform elastically under high internal pressure while maintaining engagement with the support base through the concave groove, preventing tilting and ensuring proper liquid discharge.
2Stress or pressure
If a hemispherical bottom surface is used to distribute internal pressure evenly, then the bottom surface extends downward uniformly, but the concave groove extends in a helical spring manner, pushing out the convex portions of the cradle, causing the container to come off the support base and fall over
Solution Approach 1:
The bottom surface is designed as a portion of a rotational paraboloid rather than a hemisphere. This specific curvature allows the bottom surface to extend downward uniformly under pressure while the concave groove maintains its shape and engagement with the convex portions of the support base, preventing the container from coming off the support base.
Solution Approach 2:
The shape parameters of the bottom surface are specifically optimized (using rotational paraboloid geometry) to control how the bottom surface deforms under pressure. This parameter change ensures that the deformation pattern maintains groove engagement rather than causing the groove to extend in a helical spring manner.
3Stability of the object's composition
If container supports (protrusion and pressing member) are added to the liquid feeder to prevent container deformation under pressure, then the container remains stable, but the liquid feeder becomes indispensable and limitations are imposed on which feeders can be used, reducing versatility
Solution Approach 1:
The container is designed with self-stabilizing features (curved bottom surface and support base engagement structure) that allow it to maintain stability under pressure without requiring additional container supports from the liquid feeder. This enables the container to be used with various feeders that do not have specialized support structures, improving versatility.
Solution Approach 2:
The stabilizing function is extracted from the liquid feeder (protrusion and pressing member) and integrated into the container itself (curved bottom surface and support base engagement). This allows the container to maintain stability independently, eliminating the need for feeder-specific supports and improving compatibility with different feeder types.
Data Source
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Figure 2(a)~2(b)
Figure 3(a)~3(d)
AI summary
Provided are a container and a container assembly which can remarkably suppress deformation of the container, without use of container supports of a liquid feeder, even when the internal pressure of the container becomes high at the time of pressure feed of a liquid by using a high-pressure gas, whereby stably liquid feed can be performed. The container and the container assembly have a high degree of versatility such that, for their use, they can be set into a liquid feeder having no container support. A container 10 has an approximately cylindrical main body portion 12, a cylindrical mouth 11 opening at one end of the main body portion 12, a stepped portion 13 continuously extending from the other end of the main body portion 12 and having a reduced diameter, and a round bottom portion 15 continuously extending from the stepped portion and bulging away from the stepped portion 13. A plurality of concave portions 14 for engagement with claw portions of a support base which enables the container to stand by itself are intermittently formed at the stepped portion 13 to be recessed at positions which do not overlap with a series of parting lines extending through the main body portion 12, the stepped portion 13, and the round bottom portion 15.