Portable Davit with Carbon Fiber Mast and Foldable Design
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Solution Overview
Problem
Conventional scaffold davits are excessively heavy, complex, and cumbersome, requiring significant labor for assembly, disassembly, and transportation, while also failing to balance structural rigidity with weight, making them inefficient for multi-story building maintenance.
Innovation Solution
A portable davit system utilizing lightweight carbon fiber materials for the mast and jib, with a foldable design and integrated transport wheels, allowing for easier movement and assembly, and a hoist mechanism that adjusts the platform's position relative to the jib to optimize outreach and weight distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional scaffold davits use large, strong components to meet safety standards, then structural strength and rigidity are improved, but weight and complexity increase significantly
Solution Approach 1:
The patent applies composite materials by combining aluminum extrusions with reinforcing elements to create a lightweight yet strong davit structure. The aluminum profile includes internal ribs and flanges that provide structural reinforcement without adding significant weight, resolving the contradiction between strength and weight requirements.
Solution Approach 2:
The davit structure uses local reinforcement strategies where thickening and ribbing are applied only in critical stress areas of the aluminum extrusions. This allows the structure to meet strength requirements at specific load-bearing points while keeping the overall weight low, rather than uniformly thickening the entire structure.
2Stability of the object's composition
If conventional scaffold davits use large, strong components to meet safety standards, then structural rigidity is improved, but ease of transport and assembly deteriorates
Solution Approach 1:
The davit is designed as segmented modular components that can be easily assembled and disassembled. The aluminum extrusions are cut into manageable sections with standardized connection interfaces, allowing workers to transport and assemble the structure without requiring heavy lifting equipment while maintaining overall structural rigidity when assembled.
Solution Approach 2:
The davit structure incorporates adjustable and movable elements that allow the structure to be dynamically configured during assembly and operation. Connection points and support elements can be repositioned to optimize both transport convenience and structural rigidity in different operational configurations.
3Reliability
If conventional scaffold davits are designed with heavy components, then safety standards are met, but labor requirements for assembly and disassembly increase
Solution Approach 1:
The davit is divided into pre-fabricated modular segments with standardized connection mechanisms. This segmentation allows rapid assembly through simple connection operations rather than complex welding or bolting, significantly improving assembly productivity while maintaining safety standards through engineered connection details.
Solution Approach 2:
The design replaces traditional heavy mechanical fastening systems with lighter, tool-free or tool-minimal connection mechanisms. Snap-fit connections, cam-locks, or quick-connect interfaces substitute for heavy bolts and welds, reducing the physical labor required for assembly while maintaining structural integrity and safety compliance.
Data Source
AI summary
A portable davit includes a base having a mounting portion and a housing. The housing defines a cavity. An end of a mast is positioned within the cavity. A jib is coupled to another end of the mast. A connector is coupled to the jib. A hoist is coupled to a platform and includes a drive and a rope. An end of the rope is wound about the drive. Another end of the rope is coupled to the connector. The drive is configured to rotate relative to the platform in a first direction to decrease a distance between the platform and an end of the jib and to rotate relative to the platform in an opposite second direction to increase the distance between the platform and an end of the jib. Systems and methods of use are provided.