Motorized Screw Rod Toothpaste Dispensing Pen
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Solution Overview
Problem
Existing toothpaste dispensing pen style toothbrushes lack a battery-powered mechanism for efficient and economical distribution of toothpaste, which complicates the design and fails to provide a sanitary and spill-proof solution.
Innovation Solution
A battery-powered toothpaste dispensing pen style toothbrush with a modular design, featuring a hollow cylindrical housing with a screw rod and motor that dispenses toothpaste using a threaded mechanism, and a cap for sanitary protection and spill prevention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a battery-powered motor with screw rod mechanism is added to enable automated toothpaste dispensing, then toothpaste distribution efficiency and sanitation are improved, but device complexity increases
Solution Approach 1:
The device is divided into distinct functional modules: a toothbrush handle assembly, a separate motor assembly, and a dispensing mechanism. This segmentation allows each component to be optimized independently while simplifying the overall system architecture and maintenance requirements.
Solution Approach 2:
The patent replaces manual mechanical dispensing with an automated motor-driven screw rod mechanism. The motor converts electrical energy to rotational motion, which drives the screw rod to push toothpaste through the dispensing channel, eliminating the need for manual pumping or pressing actions.
2Object-affected harmful factors
If a cap is added to cover the toothbrush head for sanitary protection and spill prevention, then hygiene and spill-proof performance are improved, but device complexity increases
Solution Approach 1:
Instead of making the toothbrush head itself impermeable or adding complex sealing mechanisms, the patent uses a simple cap that can be attached or removed. The cap provides protection when needed and can be easily removed for cleaning or refilling, inverting the approach of permanent sealing versus simple coverage.
Solution Approach 2:
The cap is designed as a separate, removable component that can be taken out from the toothbrush assembly. This allows the cap to be removed for cleaning the toothbrush head or for refilling toothpaste, while providing protection when attached. The separation of the cap from the main body simplifies maintenance and cleaning operations.
3Ease of repair
If a modular design is implemented to facilitate easy maintenance and cleaning, then ease of repair and maintenance are improved, but device complexity increases
Solution Approach 1:
The toothbrush is divided into modular segments including a removable toothbrush head, a separate motor assembly, and a dispensing mechanism. Each module can be independently cleaned, maintained, or replaced. The modular design allows users to easily disassemble and clean each component without requiring complex tools or procedures.
Solution Approach 2:
The modular components are designed with universal interfaces that allow for easy assembly and disassembly. The same modular structure enables multiple functions: the toothbrush head can be removed for cleaning, the motor assembly can be accessed for maintenance, and the dispensing mechanism can be refilled. This multi-functionality is achieved through a standardized modular architecture.
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 solution provides an efficient, economical, and sanitary means of dispensing toothpaste, ensuring easy maintenance and effective toothpaste distribution while preventing spills and maintaining hygiene.
Implementation Method 1
a motor that dispenses toothpaste using a threaded mechanism
Implementation Method 2
a hollow cylindrical housing with a screw rod and motor that dispenses toothpaste using a threaded mechanism
Data Source
AI summary
A toothpaste dispensing pen style toothbrush including a toothbrush head assembly, a housing assembly, and an electrical assembly is disclosed. These assemblies in conjunction with one another provide a simple solution to brushing your teeth. The housing assembly includes toothpaste stored therein. A screw rod is longitudinally mounted within the housing assembly. At a bottom portion of the screw rod is a screw cup. The screw cup travels the length of the screw rod when a button is pressed to actuate a battery powered motor that spins the screw rod. The screw cup then pushes the toothpaste out of the housing and into the toothbrush head assembly along a channel. The channel ends at an outlet on a toothbrush head. Thereby dispensing toothpaste onto toothbrush bristles. A user can place a cap over the toothbrush head assembly that resembles a pen cap.