Pump Dispenser Container Recessed Bottom for Residual Liquid Extraction
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Solution Overview
Problem
Conventional containers with pumps and riser pipes often leave residual amounts of liquid undischarged due to the design of the container bottom and riser pipe engagement.
Innovation Solution
The container bottom features two inclined strip-shaped depressions that open into a central recessed area, allowing the riser pipe to engage closely, ensuring that residual liquid collects and can be efficiently sucked out, with the recessed area designed to minimize residual volume.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the riser pipe is made longer to reach the container bottom, then more liquid can be discharged, but the risk of the pipe breaking increases
Solution Approach 1:
The container bottom is segmented into a recessed area and an elevated area, creating a structural division that allows the riser pipe to engage with the recessed area without requiring excessive length. This segmentation enables the pipe to reach sufficient depth while maintaining structural integrity and avoiding breakage.
Solution Approach 2:
The recessed area is pre-formed in the container bottom to guide and position the riser pipe engagement. This preliminary structural preparation ensures that the pipe engages at the optimal depth and angle, maximizing liquid discharge while preventing the pipe from extending unnecessarily and risking breakage.
2Ease of manufacture
If the container bottom is made flat for easy manufacturing, then production is simpler, but residual liquid cannot be effectively collected
Solution Approach 1:
Instead of making the entire container bottom complex, only a localized recessed area is created while the surrounding area remains relatively simple. This local modification achieves effective liquid collection in the recessed zone while maintaining ease of manufacture for the overall structure, balancing production simplicity with functional performance.
Solution Approach 2:
The container bottom transitions from a two-dimensional flat surface to a three-dimensional structure with a recessed area. This dimensional change creates depth variation that enables liquid collection and discharge improvement without significantly complicating the manufacturing process, as the recess can be formed through standard molding techniques.
3Quantity of substance
If the riser pipe engages deeply into the container bottom, then residual liquid can be accessed, but the pipe may break due to excessive length
Solution Approach 1:
The container bottom structure is segmented into recessed and elevated areas, allowing the riser pipe to engage with the recessed area to access residual liquid without requiring excessive overall length. This segmentation enables deep engagement where needed while maintaining manageable pipe dimensions.
Solution Approach 2:
The recessed area is pre-formed to guide the riser pipe engagement depth and position. This preliminary structural feature ensures the pipe reaches the necessary depth to access residual liquid while being stopped by the recess boundaries, preventing excessive length and reducing breakage risk.
4Quantity of substance
If a deep recessed area is created to collect residual liquid, then discharge completeness improves, but manufacturing complexity increases
Solution Approach 1:
Only a localized recessed area is created in the container bottom rather than complex overall restructuring. This local modification achieves effective liquid collection and discharge improvement while minimizing manufacturing complexity, as the recess can be formed through standard molding processes without requiring elaborate tooling or assembly steps.
Solution Approach 2:
The container bottom is given three-dimensional form with a recessed area, creating depth variation that enables liquid collection. This dimensional approach improves discharge completeness while maintaining relative manufacturing simplicity, as the recessed geometry can be integrated into the container molding process without adding significant structural complexity.
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 design significantly reduces residual liquid in the container, allowing nearly complete discharge of contents without leaving a substantial amount behind, as the recessed area collects and the riser pipe can extract the remaining liquid effectively.
Implementation Method 1
operating an atmospheric pump, there is the problem that a residual amount remains in the container, which cannot be discharged by means of the pump
Data Source
Figure 1~3
Figure 4~5
AI summary
The container has an atmospheric pump connected with a riser pipe (3) and engaged in the container to suck and deliver a container capacity. A hollow region (5) is formed in a container base, where the riser pipe has a sufficient length such that free ends of the pipe engage in the hollow region. A small gap is present between the free ends of the riser pipe and a base of the hollow region. The hollow region has a cross shape that is formed from two cross laminar channels, where the hollow region is confined by an inclined wall section (6), and the container is made of plastic.