Foldable Demolition Hammer Trolley With Pedal Leverage
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Solution Overview
Problem
Demolition hammers are heavy and require significant physical exertion from operators, leading to fatigue, muscle strain, and increased risk of injury due to prolonged use, especially during tasks like demolishing concrete structures.
Innovation Solution
A foldable demolition hammer trolley with a unique frame structure that allows operators to leverage the demolition hammer using a pedal assembly and inclined frame design, reducing the need for excessive back strength and featuring adjustable components for various hammer types and easy storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional demolition hammer is used, then the demolition task can be performed, but the operator experiences significant physical strain and fatigue due to the heavy weight of the tool
Solution Approach 1:
The patent introduces a trolley as an intermediary device between the operator and the demolition hammer. The trolley carries the heavy demolition hammer (weight over 10 kg) and provides a lever arm with pedal assembly, allowing the operator to apply force indirectly through mechanical leverage rather than directly holding and operating the heavy tool, thereby reducing physical strain on the operator's arms, shoulders, and back
Solution Approach 2:
The trolley features a foldable frame structure with pivotally connected components (pedal assembly, support frame part, carrying frame part) that can be adjusted between different configurations. The frame can be folded into a compact state for storage and transport, and expanded into a working state for operation, providing dynamic adaptability to different operational needs while reducing the operator's physical burden
2Productivity
If the demolition hammer is held and operated for extended periods, then the demolition task progresses, but the operator's reaction time slows and focus reduces due to accumulated fatigue
Solution Approach 1:
The trolley acts as a mediator that absorbs and distributes the physical stress of operating the heavy demolition hammer over a larger structure rather than concentrating it on the operator's body. The lever arm and pedal assembly allow the operator to maintain control with minimal physical exertion, preventing fatigue accumulation that would otherwise slow reaction time and reduce focus, thereby maintaining both productivity and safety over extended operation periods
3Ease of operation
If the trolley frame is expanded for operation, then the demolition hammer can be properly positioned and operated, but the storage and transportation space required increases
Solution Approach 1:
The trolley employs a foldable frame structure where the support frame part and carrying frame part can be pivotally folded close to the main rod, transforming the trolley from an expanded working configuration to a compact storage configuration. This dynamic structural transformation allows the trolley to provide adequate space for positioning and operating the demolition hammer when needed, while reducing to a minimal volume for convenient storage and transportation when not in use
Solution Approach 2:
The foldable frame design allows the carrying frame part and support frame part to be folded and nested close to the main rod, creating a compact nested structure that minimizes storage volume. The components are arranged to fold into each other's space, similar to nested dolls, enabling the trolley to transition between a functional expanded state and a space-efficient compact state for storage and transport
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 foldable design enables operators to perform demolition tasks with less physical strain, reducing the risk of injury and improving operational efficiency while being convenient for storage and transportation.
Implementation Method 1
the pedal assembly, including a connecting part and a pedal pad, with the pedal pad fixed to one side of the connecting part, and the other side of the connecting part pivotally connected to the fixed axle, allowing the pedal assembly to be folded close to or away from the main rod
Implementation Method 2
a second frame, pivotally attached to one side of the first frame, including: a support frame part, with one end pivotally connected to the main rod, allowing the support frame part to be folded close to or away from the main rod
Data Source
AI summary
The present invention provides a foldable demolition hammer trolley designed for floor removal operations. It comprises a first frame with a main rod, a moving assembly, and a pedal assembly. The moving assembly, located at the main rod's bottom end, includes a fixed axle and wheels. One side of a connecting part of the pedal assembly connects pivotally to the fixed axle and the other side is fixedly to a pedal pad. The second frame is pivotally attached to the first frame and includes a support frame part, a carrying frame part, a telescopic sleeve rod, an adjustment member, and first and second fixing assemblies. The support and carrying frame parts are pivotally connected. The telescopic sleeve rod and adjustment member between them allow distance adjustment. The fixing assemblies secure the demolition hammer's handle and body. This can reduce the force required by the operator.