Discharging container
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Solution Overview
Problem
Conventional discharging containers face issues with water intrusion and bacterial contamination due to external air and water entering through gaps during use, particularly in environments like bathrooms, and the manufacturing complexity of existing solutions.
Innovation Solution
A discharging container design featuring a pump head with a dual-layer waterproof structure, including an inner and outer waterproof wall, and strategically positioned openings to equalize air pressure and prevent water intrusion, along with a guide rod and cover portion configuration that simplifies demolding and manufacturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate external air intake port is formed from the gap between the skirt-shaped cover and the outer peripheral surface of the guide rod, then water and external air intrusion is prevented, but manufacturing becomes difficult due to demolding issues
Solution Approach 1:
The external air intake function is segmented into multiple pathways: the gap between the pump head outer peripheral surface and guide rod, and the communication hole through the cover. This segmentation allows the air intake function to be achieved without requiring complex molded structures that are difficult to demold, while still preventing water intrusion through strategic positioning of these air pathways.
Solution Approach 2:
The cover acts as an intermediary structure that provides a communication hole for external air intake while preventing water from reaching the pump head gap. The cover mediates between the need for air intake and the need to prevent water intrusion, allowing air to pass through while blocking water through its positioning and the hydrophobic nature of the air intake pathways.
2Ease of manufacture
If the pump head has a separate structure to easily demold the suction port from the mold, then manufacturing is simplified, but device complexity increases
Solution Approach 1:
The cover and pump head are merged into a integrated structure where the cover is positioned on the pump head and provides both structural support and air intake functionality through its communication hole. This merging eliminates the need for separate demolding mechanisms while maintaining manufacturing simplicity, as the integrated structure can be molded as a single piece or easily assembled without complex demolding procedures.
Solution Approach 2:
The cover serves multiple functions: it provides structural support for the pump head, creates a sealed environment, and incorporates a communication hole for external air intake. This multi-functionality reduces the need for additional separate components, simplifying the overall device structure while maintaining ease of manufacture through standard molding techniques.
3Reliability
If water accumulates in the fitting portion of the pump head and cover, then bacterial contamination and odor generation risk increases
Solution Approach 1:
The design extracts the air intake function from the water-prone gap area and relocates it to the cover's communication hole, which is positioned to prevent water accumulation. By taking out the air intake pathway from the vulnerable fitting portion and placing it in the cover structure, the system maintains air flow while eliminating the standing water problem that leads to bacterial contamination.
Solution Approach 2:
The cover is preliminarily designed with a communication hole that establishes an air intake pathway before water can accumulate in the fitting portion. This preliminary structural arrangement ensures that air can be drawn from above the water line, preventing water from entering the pump head while maintaining proper air flow for foam generation, thereby preventing bacterial growth conditions from developing.
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 design effectively prevents water and external air from entering the container body, reducing the risk of bacterial contamination and simplifying the manufacturing process by ensuring easy demolding of the external air intake port.
Implementation Method 1
a space between the inner waterproof wall and the guide rod is communicated with a space between the inner waterproof wall and the first outer waterproof wall via a first opening formed in the inner waterproof wall
Implementation Method 2
a space between the inner waterproof wall and the first outer waterproof wall is communicated with external air via a second opening formed in the first outer waterproof wall and/or a third opening formed in a top wall of the pump head portion
Implementation Method 3
The pump head portion is provided with an inner waterproof wall which can move up and down along an outer peripheral surface of the guide rod, and a first outer waterproof wall located at the outside of the inner waterproof wall
Data Source
AI summary
A discharging container comprising a container body that stores a content and a discharging component that discharges the content. The discharging component comprises a cover portion mounted to a mouth neck portion of the container body and a pump head portion that discharges the content by a pressing operation. A tubular guide rod is erected upwards from the periphery of an opening formed in the central portion of a top plate of the cover portion. The pump head portion is provided with an inner waterproof wall capable of moving up and down along the outer peripheral surface of the guide rod, and a first outer waterproof wall located at the outer side of the inner waterproof wall. The discharging container is easy to be manufactured and can reliably prevent water intrusion.