Threaded Coil Disk Anchor for Precast Lifting and Fixtures
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Solution Overview
Problem
Existing lifting anchors for precast concrete structures provide limited engagement with lifting equipment and lack secondary functionality after detachment, leading to inefficiencies in construction processes.
Innovation Solution
A lifting anchor with a shaft and a circular plate embedded in the concrete, featuring a helical thread opening, allowing for strong engagement with lifting equipment and enabling secondary fixtures to be attached permanently or semi-permanently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional lifting anchor is used, then the anchor can be embedded in precast concrete structures, but the engagement with lifting equipment is limited and no secondary functionality is provided
Solution Approach 1:
The anchor is designed with a dual-functionality system where the same anchor component serves both as a lifting anchor during construction and as a fixture anchor for permanent installations. The threaded opening in the shaft allows the same anchor to engage with both lifting equipment (via the lifting eye) and fixture equipment (via the insert), eliminating the need for separate anchors for different purposes and thereby improving versatility while maintaining reliable engagement for both functions
2Strength
If the lifting eye remains attached to the anchor during lifting operations, then strong engagement is achieved, but the anchor provides little or no value after detachment
Solution Approach 1:
The anchor is pre-configured with a threaded opening in the shaft during manufacturing, preparing it in advance for future fixture attachment. This preliminary preparation ensures that after the lifting function is completed and the lifting eye is detached, the anchor immediately becomes functional for securing fixtures, thereby maintaining its value and utility throughout the entire project lifecycle
3Ease of manufacture
If a simple anchor design is used, then manufacturing is straightforward, but the engagement with lifting equipment and fixtures is insufficient
Solution Approach 1:
The anchor is divided into distinct functional segments: a shaft portion with a threaded opening for fixture engagement, a circular plate for embedding in concrete, and a lifting eye for equipment attachment. This segmentation allows each component to be optimized for its specific function while maintaining overall structural integrity and ease of manufacture through standardized processes
Data Source
AI summary
An anchor for lifting, connecting to, and/or bracing a precast concrete structure, the anchor including a shaft defining a first end, a second end, and a longitudinal axis; and a circular plate coupled to the second end of the shaft, the circular plate oriented perpendicular to the longitudinal axis, wherein the shaft defines an opening extending from the first end of the shaft towards the second end of the shaft in a direction generally parallel with the longitudinal axis, the opening having a sidewall with a helical thread.