Rhythmic Pill Crusher Threaded Mechanism
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Solution Overview
Problem
Existing pill crushers face challenges in efficient operation, ease of use, and cleanliness, particularly for patients who have difficulty swallowing pills, leading to difficulties in applying forces evenly, noise, and potential cross-contamination due to design limitations.
Innovation Solution
A rhythmic pill crusher design featuring a crushing cover with first threads that are loosely fitted to a supporting platform with second threads, allowing for rhythmic engagement and rotation without displacement in height, enabling efficient crushing and easy cleaning by adjusting the groove and ridge widths of the threads for effective grinding and powder expulsion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If large manual forces are applied in short time to crush pills, then crushing efficiency is improved, but difficulty in implementation and excessive noise occur
Solution Approach 1:
The patent employs periodic rhythmic motion through threaded structures that convert rotational movement into reciprocating crushing action. The threads on the crushing cover and supporting platform create a rhythmic engagement pattern that automatically provides periodic crushing forces without requiring continuous manual pressure, thereby improving ease of operation while maintaining crushing efficiency.
2Force
If lever structure with handpiece is used to crush pills, then crushing capability is improved, but difficulty in applying forces evenly and handpiece sticking occur
Solution Approach 1:
The patent replaces the complex lever structure and handpiece mechanism with a simpler threaded mechanical system. The threads on the crushing cover and supporting platform automatically distribute crushing forces evenly through their geometric progression, eliminating the need for manual force application and preventing sticking issues associated with lever mechanisms.
3Object-affected harmful factors
If rotating pill crusher is used to crush pills, then noise reduction is achieved, but time and energy waste due to reverse rotation and cleaning requirements occur
Solution Approach 1:
The patent employs dynamic threaded structures that allow the crushing cover to rotate rhythmically forward for crushing and automatically reverse through the thread geometry without requiring manual intervention. This dynamic mechanism eliminates time loss associated with stopping and cleaning, as the threaded design prevents material buildup and allows continuous operation.
4Object-affected harmful factors
If rotating pill crusher is used to crush pills, then quiet operation is achieved, but cross contamination occurs if not well cleaned
Solution Approach 1:
The patent extracts the cleaning problem by designing a threaded crushing system where the thread geometry itself prevents material accumulation. The rhythmic engagement and disengagement of threads naturally expels crushed material, eliminating the need for frequent cleaning and preventing cross-contamination while maintaining quiet operation.
5Ease of operation
If groove width of threads is larger than ridge width, then rhythmic rotation without height displacement is achieved, but thread engagement precision may be reduced
Solution Approach 1:
The patent optimizes the thread parameters by setting groove width larger than ridge width, which creates a rhythmic rotation mechanism that allows rotational movement without height displacement. This parameter change balances ease of operation with sufficient engagement precision, as the thread geometry maintains adequate contact area while enabling smooth rhythmic motion.
Data Source
AI summary
A rhythmic pill crusher, including: a crushing cover including a cylindrical boss, wherein a plurality of first threads formed on a first wall of the crushing cover and around a column portion of the cylindrical boss, wherein the first wall is distant from the column portion of the cylindrical boss; and a supporting platform including a cylindrical recess for receiving the cylindrical boss and a plurality of second threads formed, in response to the first threads, on a second wall of the supporting platform; wherein the first threads are loosing engaged with the second threads, the first threads spirally go upward and downward along the second threads, or the first threads suspend relative to the second threads, which allows the first threads to rotates remaining in a same height. The pill crusher can be operated efficiently and easily and can be cleaned easily for reducing cross contaminations.