Electric Vibrating Float for Concrete Levelling
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Solution Overview
Problem
Traditional concreting tools, such as vibrating levellers and power trowels with internal combustion engines, are cumbersome and require multiple people to handle, making them unsuitable for small areas and posing a risk of injury due to their weight and size, as well as the urgency of completing concreting tasks before the concrete sets.
Innovation Solution
Development of lightweight, electric-powered vibrating floats and rotary trowels with rechargeable batteries, adjustable handles, and multiple motors for uniform vibration, allowing single-person operation and reducing physical strain, along with removable batteries for extended use without downtime.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional vibrating levellers with internal combustion engines are used, then levelling efficiency is improved, but weight and device complexity increase making them unsuitable for small areas
Solution Approach 1:
The patent replaces the internal combustion engine with an electric motor system. The electric motor is coupled to the elongate plate and configured to vibrate the plate, eliminating the need for a combustion engine while maintaining the levelling function. This substitution reduces weight and complexity while preserving productivity.
Solution Approach 2:
The electric motor serves multiple functions: it provides vibration for levelling concrete and can be controlled to adjust vibration frequency and intensity. This multi-functionality replaces what would traditionally require separate mechanisms, reducing overall device complexity while maintaining efficiency.
2Power
If traditional power tools with internal combustion engines are used, then power and vibration capability are improved, but ease of operation deteriorates due to weight and size
Solution Approach 1:
The electric motor provides sufficient vibration power for concrete levelling without the excessive weight of a combustion engine. The motor can be controlled to deliver appropriate vibration intensity, and the overall tool weight is reduced to a level that allows single-person operation and easy maneuverability.
Solution Approach 2:
The handle assembly is designed to be adjustable in position and angle, allowing the operator to configure the tool for comfortable operation. The electric motor's vibration characteristics can also be adjusted through control mechanisms, optimizing performance for different concrete conditions while maintaining ease of operation.
3Manufacturing precision
If traditional tools are used for small areas, then levelling capability is sufficient, but portability and safety deteriorate due to weight
Solution Approach 1:
The electric motor system provides the necessary vibration for precise concrete levelling while significantly reducing weight compared to combustion engine tools. This weight reduction eliminates the injury risks associated with heavy tools, particularly for small-area work where the tool needs to be frequently positioned and maneuvered.
Solution Approach 2:
The electric motor allows for adjustable vibration frequency and intensity parameters, enabling precise control for different concrete conditions and small-area applications. This precision control maintains levelling quality while the reduced weight eliminates safety hazards.
4Duration of action of moving object
If multiple batteries are used for extended operation, then duration of action is improved, but device complexity increases
Solution Approach 1:
The system uses removable rechargeable batteries that can be independently replaced. When one battery is depleted, it can be quickly swapped out and recharged separately, while another battery continues operation. This approach extends operational duration without requiring a complex integrated power management system.
Solution Approach 2:
The power system is segmented into multiple independent battery units rather than a single large battery system. Each battery can be independently managed, charged, and replaced, simplifying the overall system architecture while providing extended operational capability through battery swapping.
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 electric concreting tools provide ergonomic and safe operation, reducing the risk of injury by enabling efficient levelling and finishing of small areas with reduced physical effort and increased portability, while allowing for continuous operation with multiple batteries, thus addressing the limitations of traditional tools.
Implementation Method 1
at least one electric motor coupled to the elongate plate and configured to vibrate the plate
Implementation Method 2
the vibrating float includes a rechargeable battery, coupled to the electric motor, configured to power the electric motor
Implementation Method 3
at least one electric motor coupled to the elongate plate and configured to vibrate the plate
Data Source
AI summary
A vibrating float including an elongate plate, having a substantially planar lower surface configured to be moved across the concrete; a plurality of evenly spaced electric motors coupled to the elongate plate and configured to vibrate the plate; and a handle, coupled to the elongate plate, for use by an operator to control movement of the vibrating float.