Quantitative Dispensing Device With Tactile Dosage Control
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Solution Overview
Problem
Existing dispensing devices for beauty and skin care products often result in waste due to difficulty in dispensing the last bit of product and lack of precision in controlling the amount dispensed, especially with high-end products that require manual effort to read graduation marks.
Innovation Solution
A quantitative dispensing device featuring a mounting seat, elastic cap, hollow dispensing element, regulating member, and press button, which allows for precise control of the amount dispensed by aligning contacting surface portions with slide slots and utilizing a press button to expel air and create suction, enabling easy adjustment of the quantity dispensed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a dropper is used to dispense high-end skin care product, then the product can be precisely dispensed in controlled amounts, but it becomes difficult for users to control the total amount dispensed and requires extra effort to read graduation marks
Solution Approach 1:
The invention changes the operational parameter from manual droplet counting to a mechanical rotation-based dosage selection. The rotating member with limiting members provides discrete, tactilely distinguishable positions that correspond to different dispensing quantities, transforming the control mechanism from visual estimation to mechanical positioning.
Solution Approach 2:
The invention replaces the traditional visual-reading mechanical system (graduation marks on a dropper) with a tactile mechanical system. The limiting members engage with the pressing member to provide physical stops at predetermined rotation angles, allowing users to select dosage through touch and rotation rather than visual reading and manual counting.
2Ease of operation
If a bottle with hollow tube and press head is used, then the product can be dispensed manually, but the last bit of product remains in the hollow tube resulting in waste
Solution Approach 1:
The invention ensures continuous useful action by designing the pressing member to travel the full length of the hollow tube from top to bottom. The pressing member's movement is constrained by the limiting members on the rotating member, ensuring it reaches the bottom of the tube to dispense even the last remnants of product, eliminating waste while maintaining ease of operation.
3Measurement precision
If graduation marks are provided on the dropper, then precise dispensing is possible, but users have to spend extra effort to read the marks which is inconvenient and laborious
Solution Approach 1:
The invention replaces the visual-mechanical system of graduation marks with a tactile-mechanical system. Instead of requiring users to visually locate and read marks, the limiting members provide physical engagement points that are felt during rotation, automatically indicating the selected dosage position without requiring visual attention or interpretation.
Solution Approach 2:
The rotating member with limiting members serves itself by providing self-indicating positions. When the pressing member engages a limiting member, the rotation is automatically stopped at the correct position, and the user can feel this engagement, eliminating the need for external visual references or additional steps to determine the selected dosage.
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 device allows for convenient and precise dispensing of a preselected quantity of flowable material, reducing waste and simplifying the process of using high-end skin care products by providing tangible and audible feedback for adjusting the amount dispensed.
Implementation Method 1
the press button is pressed downwardly against the elastic cap, so that the elastic cap is deformed to expel air from the air-containing space through the dispensing element
Implementation Method 2
the elastic cap is deformed to expel air from the air-containing space through the dispensing element
Implementation Method 3
the elastic cap stores a restoring force capable of returning the press button to the raised position and generates a suction force for drawing the flowable material into the dispensing element
Data Source
AI summary
A quantitative dispensing device includes amounting seat, an elastic cap, a dispensing element, a regulating member, a rotatable seat and a press button that has a positioning unit. The regulating member includes a regulating unit that has a stepped-shaped top surface having a plurality of contacting surface portions. The press button is movable between a raised position, where the positioning unit is spaced apart from a selected one of the contacting surface portions, and a pressed position, where the positioning unit abuts against the selected one of the contacting surface portions and the press button is pressed downwardly against the elastic cap.