Modular Ramp Block Assembly with Fixing Pin
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Solution Overview
Problem
Existing ramps for mobility assistance, such as those at building entrances and sidewalks, are often made of materials like concrete that require curing and take up space, and are difficult to install and remove without damaging components.
Innovation Solution
A block-type modular ramp system featuring stackable block bodies with a fastening mechanism, including a fixing pin and anti-slip member, allowing for easy assembly and disassembly without breaking the components, and a fixing member for secure floor attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If concrete or marble is used to make the ramp, then the ramp has high strength and stability, but it requires a curing process and cannot be removed without damage
Solution Approach 1:
The ramp is divided into multiple block bodies that can be individually assembled and disassembled. Each block body is a separate component that can be connected to others through fixing pins, allowing the ramp to be constructed in modular sections rather than as a single monolithic structure.
Solution Approach 2:
Fixing pins are introduced as intermediary components to connect the block bodies together. These pins serve as mediators that join the blocks without requiring permanent bonding, enabling both strong connections during use and easy separation when removal is needed.
2Stability of the object's composition
If the ramp is made as a single solid structure, then it has high stability, but it occupies large space and is difficult to store when not in use
Solution Approach 1:
The ramp structure is segmented into multiple detachable block bodies that can be separated and stored individually or in small groups when not in use, significantly reducing the space required for storage compared to a complete assembled ramp.
Solution Approach 2:
The block bodies are designed to nest within each other when disassembled, with smaller blocks fitting into larger ones, creating a compact storage configuration that minimizes the volume occupied when the ramp is not in use.
3Strength
If traditional fixing methods are used for the fixing pin, then the block bodies are securely connected, but the fixing pin or block bodies may break during assembly or disassembly
Solution Approach 1:
The fixing pin incorporates localized structural features such as a head portion with a specific inclination angle that matches the ramp's inclination, and key grooves at specific locations. These local quality enhancements concentrate strength where needed while reducing stress on other parts, preventing breakage during assembly and disassembly.
Solution Approach 2:
The fixing pin design includes a head portion that catches on the upper outer periphery of the fixing hole before the pin fully inserts, providing a cushioning effect that prevents excessive force from being transmitted to the block bodies during assembly, thereby preventing breakage.
4Ease of repair
If the ramp surface is smooth for easy cleaning, then maintenance is easier, but users may slip and safety is compromised
Solution Approach 1:
The anti-slip member is positioned only at the walking surface of the ramp where user contact occurs, providing enhanced friction locally. The rest of the ramp structure maintains smooth surfaces that are easy to clean, thus resolving the contradiction between slip resistance and cleaning ease.
Solution Approach 2:
The anti-slip member features grooves and protrusions that replicate natural friction surfaces, creating a textured pattern that increases grip for users while maintaining a relatively simple overall structure that doesn't complicate cleaning procedures.
Data Source
AI summary
A block-type modular ramp is to be provided in a place where a step or bump is formed. The block-type modular ramp includes block bodies arranged in a horizontal direction and stacked vertically to form a backbone, a fastening member for fastening the block bodies arranged in the horizontal direction to each other, a fixing pin for fixing the block bodies stacked vertically to each other, a fixing member coupled to the block bodies and fixing the block bodies to a floor surface where to install the ramp, fastening grooves formed in the block bodies, and fixing holes formed in the block bodies in an up-down direction.