A liquid dispensing device
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Solution Overview
Problem
Existing manually operated demand delivery liquid pump dispensing devices are inefficient in providing a proper amount of liquid detergent for dish-washing, often dispensing too much or too little, and contaminate the detergent supply with impurities from dirty dish-brushes, making the liquid unusable over time.
Innovation Solution
A manually operated demand delivery liquid pump dispensing device with a container and lid design featuring a conduit with an exterior top section and interior section, allowing controlled dispensing of detergent directly onto a dish-brush, preventing contamination by using a semi-rigid thermoplastic polymer container that compresses to pump detergent and a lid with a concave dish-shaped portion for efficient detergent distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional dispenser with a concave dish-shaped portion is used to wet a dish-brush, then the brush can be wetted with detergent, but impurities from the dirty brush are deposited in the concave portion and drain back into the container, contaminating the detergent supply
Solution Approach 1:
The conduit is divided into two distinct sections: an exterior top section that extends upward from the concave portion and an interior section that extends downward into the liquid storage. This segmentation creates a physical barrier that prevents contaminated liquid from draining back into the container while still allowing detergent to be dispensed onto the brush.
Solution Approach 2:
The exterior top section of the conduit acts as an intermediary barrier between the concave dish-shaped portion and the liquid storage container. It allows detergent to pass through to wet the brush while blocking the reverse flow of contaminated liquid, thus protecting the detergent supply from contamination.
2Ease of operation
If manual dispensing of detergent is performed, then some liquid detergent can be dispensed, but it is difficult to supply a proper amount, often resulting in too much or too little detergent
Solution Approach 1:
The dispenser enables self-service operation where the user simply presses the brush against the concave dish-shaped portion, and the system automatically dispenses the appropriate amount of detergent without requiring the user to measure or control the quantity manually. The design inherently provides the correct dosage through its structural configuration.
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
Ensures the right amount of detergent is dispensed efficiently, preventing contamination and maintaining the quality of the detergent supply by allowing controlled dispensing and easy cleaning of the device.
Implementation Method 1
using a semi-rigid thermoplastic polymer container that compresses to pump detergent
Data Source
Figure 1~2B
Figure 3~5B
AI summary
A manually operated demand delivery liquid pump dispensing device, includes: -a container (2) to be filled with a storage (20) of the liquid to be dispensed and with air inside the container, said container comprising a bottom part (6), a top part (5), and a side wall (7) between said bottom part and said top part, and a lid (3) which seals an opening (4) in the top part of the container, usable for filling the container, said lid being provided on the upper side thereof with a shallow basin (15), including, in the centre thereof, a concave dish-shaped cavity (21) and a discharge opening in the region of said dish-shaped cavity of the lid, and with a tube (22) for supplying liquid to said concave dish-shaped cavity from said storage of liquid which may be contained in the container.Said tube has an exterior top section (22a) extending upwards from the bottom of said concave dish-shaped cavity (21), and an interior section (22b) extending downwards from said top section into the storage of the liquid which may be contained in the container.