Paste Container Stepwise Rotation for Precise Paste Discharge
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Solution Overview
Problem
Existing cosmetic containers require repeated rotation of the pedestal to discharge remaining cosmetics, leading to inconvenience and inaccurate control of the extended length, resulting in waste.
Innovation Solution
A paste container design featuring a unidirectional, step-by-step rotation mechanism with ratchets, elastic pieces, and rotation stop strips to control the discharge amount accurately.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If the pedestal is rotated repeatedly to discharge remaining cosmetics, then the discharge function is achieved, but the operation convenience deteriorates and time is wasted
Solution Approach 1:
The rotation mechanism is segmented into discrete steps using ratchet structures and rotation stop strips. The pedestal can only rotate by fixed angular increments determined by the spacing of ratchet teeth and stop strips, preventing continuous rotation and enabling precise control over paste discharge quantity. This segmentation allows users to discharge exact amounts without repeated rotations or waste.
2Ease of operation
If the pedestal rotation angle is not controlled, then the discharge operation is simple, but the measurement precision of extended length deteriorates
Solution Approach 1:
The rotation stop strips and ratchet structures provide mechanical feedback by physically limiting the rotation angle. Each rotation stop strip engages with corresponding features on the pedestal to prevent rotation beyond predetermined angles. This feedback mechanism ensures that the pedestal rotates only by intended increments, providing precise control over paste extrusion length while maintaining simple user operation.
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 allows convenient and precise control of the paste discharge, eliminating the need for repeated rotation and ensuring accurate adjustment of the extended length.
Implementation Method 1
an elastic piece is provided at the bottom of the inner bottle; and by rotating the pedestal, an end of the elastic piece is capable of being unidirectionally clamped into gaps between the ratchets in sequence
Implementation Method 2
the threaded rod includes a bottom circumferentially fixed with the pedestal, and a top extending into a first through hole at a bottom of the inner bottle and threadedly connected to the stopper; the threaded rod rotates with rotation of the pedestal and drives the stopper to move toward the top of the inner bottle, thereby squeezing the paste out
Data Source
AI summary
A paste container includes a lid, an inner bottle, a stopper, a threaded rod, a pedestal, and an inner lid fixed at a top of the inner bottle, where a bottom of the lid is detachably connected to the pedestal; the stopper is provided in the inner bottle and circumferentially fixed with the inner bottle; the threaded rod includes a bottom circumferentially fixed with the pedestal, and a top extending into a first through hole at a bottom of the inner bottle and threadedly connected to the stopper; the pedestal is sleeved on the bottom of the inner bottle and rotatably connected to the inner bottle; the pedestal is capable of rotating unidirectionally relative to the inner bottle in a step-by-step manner; a top of the stopper is capable of supporting a paste; and the threaded rod rotates with rotation of the pedestal and drives the stopper.