Tooth Cleaning Device Internal Fluid Conduit Sealing
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Solution Overview
Problem
Existing tooth cleaning devices face challenges with nozzle replacement and waterproof performance, limiting maintenance and usability.
Innovation Solution
A tooth cleaning device with an internal fluid conduit system that allows for easy assembly and disassembly of components, featuring a main body and cleaning body with coupling protrusions and channels, a flange with a recessed coupling channel, and a tube guide for secure connection and waterproof sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the nozzle is disassembled for replacement or maintenance, then the nozzle can be replaced, but waterproof performance deteriorates
Solution Approach 1:
The nozzle is nested within the cleaning head assembly, which itself is nested within the main body housing. This hierarchical nesting allows the nozzle to be accessed and replaced by disassembling outer layers while the waterproof seal remains intact at each nesting interface through integrated sealing structures.
Solution Approach 2:
The waterproof seal structure is merged with the coupling mechanism between the cleaning head and main body. The seal is integrated into the coupling protrusion and channel design, so that when components are coupled, both mechanical connection and waterproof sealing are achieved simultaneously, eliminating separate sealing steps that could compromise waterproofing.
2Ease of repair
If the nozzle is disassembled for replacement, then the nozzle can be replaced, but assembly complexity increases
Solution Approach 1:
The device is segmented into distinct modular components: main body, cleaning head, and nozzle assembly. Each segment can be independently accessed and replaced. The coupling protrusion and channel design provides clear separation between components while ensuring simple reassembly through guided alignment.
Solution Approach 2:
The coupling protrusion and channel act as an intermediary mechanism that simplifies the connection between the nozzle, cleaning head, and main body. This intermediary structure provides guided alignment and automatic positioning, reducing the complexity of assembly operations.
3Device complexity
If a traditional toothbrush structure is used, then the structure is simple, but cleaning functionality is limited
Solution Approach 1:
The cleaning head assembly serves multiple functions: it houses the nozzle for fluid delivery, provides a mounting interface for the brush, and acts as a coupling element between the main body and nozzle. This multi-functionality allows a single component to perform multiple tasks, enhancing versatility without proportionally increasing complexity.
Solution Approach 2:
The device transitions from a static traditional toothbrush structure to a dynamic system where the cleaning head can be selectively coupled and decoupled from the main body. This dynamic configuration allows the user to adapt the device for different cleaning needs by attaching or removing the cleaning head as required.
Data Source
AI summary
A tooth cleaning device having an internal fluid conduit formed therein, and the tooth cleaning device includes: a main body which has a tube provided in the main body and selectively connectable with a drive unit; and a cleaning body which is assembled to one side of the main body, and has the internal fluid conduit formed in the cleaning body and connectable with the tube, in which at least one nozzle is formed to be opened at one end of the internal fluid conduit. Further, when the main body and the cleaning body are assembled, one end of the tube is connected to one end of the internal fluid conduit so as to form a single continuous flow path, and through the single continuous flow path, a cleaning solution may be discharged or a fluid is sucked and then discharged to the outside.