Movable Brush Toothbrush with Sliding Guide for Deep Cleaning
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Solution Overview
Problem
Conventional toothbrushes are unable to effectively clean deep areas of the oral cavity, particularly wisdom teeth, due to their fixed head design, leading to inadequate removal of food residue and increased risk of tooth decay and periodontal disease.
Innovation Solution
A toothbrush structure featuring a movable brush that extends from the body via a slidable post and push block, allowing for cleaning at various angles, with a replaceable and reinforced design to enhance durability and environmental sustainability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the toothbrush head is fixed on the handle, then the structure is simple and stable, but the cleaning depth and angle are limited
Solution Approach 1:
The patent applies the dynamics principle by transforming the fixed head into a movable brush that can slide along the handle. The movable brush is guided by a guide groove and positioned by positioning portions, allowing it to extend and retract while maintaining structural stability. This dynamic design enables the brush to adapt to different cleaning angles and depths without significantly increasing overall device complexity.
2Duration of action of stationary object
If the toothbrush head is fixed, then the manufacturing cost is low, but the service life is limited due to deformation
Solution Approach 1:
The patent applies segmentation by dividing the toothbrush into distinct modular components: a reusable handle with guide groove and positioning portions, and a replaceable movable brush. This modular design allows the brush head to be replaced when deformed or worn, significantly extending the overall service life of the toothbrush system. The simplified manufacturing of individual components offsets the increased assembly complexity.
3Length of moving object
If the movable brush extends out of the body, then the cleaning depth is expanded, but the structural stability decreases
Solution Approach 1:
The patent introduces an intermediary guiding mechanism consisting of a guide groove and positioning portions that mediate between the movable brush and the handle. This intermediary structure constrains the brush's movement path, ensuring it extends linearly along the slot while maintaining structural stability. The positioning portions act as intermediaries that secure the brush at specific intervals, preventing lateral deviation during use.
4Reliability
If the brush is fixed design, then the device is simple to manufacture, but it cannot clean wisdom teeth effectively
Solution Approach 1:
The patent implements dynamics by enabling the brush head to move relative to the handle through a sliding mechanism. The movable brush can be extended along the guide groove to reach deep areas like wisdom teeth, and the positioning portions ensure stable engagement during cleaning. This dynamic capability significantly improves cleaning effectiveness for hard-to-reach areas while maintaining reasonable manufacturing complexity through the use of simple guiding features.
Data Source
AI summary
A toothbrush structure contains: a body, a movable brush, and a protective unit. The body includes a handle, a connecting neck, and a fixed head. The connecting neck is connected with the handle and the fixed head, the fixed head has multiple first orifices for receiving multiple first bristles, and a slot is formed on the fixed head and extends to the handle. The movable brush slides in the slot linearly and includes a push block, a slidable post, and a movable brushing portion. The push block is disposed on the slidable post, and the movable brushing portion is mounted on the slidable post opposite to the push block and has multiple second orifices for receiving multiple second bristles. The slidable post is received in the slot. The protective unit is configured to cover the slot so that the movable brush is limited to slide in the slot.