Portable Power Box Wheel Clamp and Ground Locking Mechanism
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Solution Overview
Problem
Portable power supply boxes with wheels often unintentionally roll or rotate on slopes, posing safety hazards and inconvenience, especially in varied work environments with different ground conditions, requiring a securing mechanism that is compact, adaptable, and easy to activate.
Innovation Solution
The portable power supply box incorporates a clamping mechanism that moves between locked and unlocked positions to prevent wheel rotation, along with a ground engagement member like a kickstand or cam that enhances stability, allowing for easy user engagement and adaptability across various surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a securing mechanism is added to prevent rolling, then safety and stability are improved, but device complexity and weight increase
Solution Approach 1:
The securing mechanism is divided into separate functional components: a first securing member that contacts the wheel to prevent rotation, and a second securing member that contacts the ground to prevent rolling. This segmentation allows each component to be simple and lightweight while collectively providing comprehensive security.
Solution Approach 2:
The securing function is extracted as a separate, removable mechanism rather than being integrated into the main power supply box structure. This allows the box to remain simple and lightweight while adding security only when needed at worksites.
2Reliability
If a securing mechanism is added to prevent rolling, then stability is improved, but portability deteriorates
Solution Approach 1:
The securing mechanism uses lightweight segmented components including a wheel-contact member and a ground-contact member, avoiding heavy integrated structures while achieving stable securing on slopes and uneven terrain.
Solution Approach 2:
The securing mechanism uses simple, lightweight materials and structures that prioritize portability over durability, accepting that these components may be temporary or replaceable rather than permanent fixtures on the power supply box.
3Adaptability or versatility
If a securing mechanism is designed for various surfaces, then adaptability is improved, but device complexity increases
Solution Approach 1:
The ground engagement member is designed with a universal contact surface that can engage with various ground types including pavement, gravel, and uneven terrain. This single multi-functional design avoids the need for multiple specialized securing mechanisms for different surfaces.
Solution Approach 2:
The securing mechanism allows for dynamic adjustment of the ground engagement member's position and angle, enabling it to adapt to different slope angles and ground conditions without requiring complex mechanical adjustments or multiple configurable components.
4Weight of moving object
If the securing mechanism is made compact and light, then portability is improved, but securing effectiveness may worsen
Solution Approach 1:
The securing mechanism leverages the vertical dimension by using a ground engagement member that extends downward to contact the ground, creating a stable triangular support structure with the wheels and handle, thereby achieving strong securing effectiveness with minimal added weight.
Solution Approach 2:
The ground engagement member acts as a counterweight element that uses gravitational force to stabilize the power supply box on slopes, converting the box's own weight into a securing force rather than requiring additional heavy securing components.
Data Source
AI summary
A portable power source is moveable over a support surface. The portable power source has a power supply, a frame at least partially surrounding the power supply, at least one wheel, handle having a user engagement member a and a clamping mechanism. The clamping mechanism moves from a first position to a second position. The clamping mechanism stops the wheel in the first position and allows the rotation of the wheel in the second position.