Deformable Plate Anchor for Undercut Bore Hole Stability
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Solution Overview
Problem
Existing anchoring systems for concrete often fail to provide a secure and efficient method for embedding anchors, as they either lack effective expansion mechanisms or are prone to material flow past the expanded portion, leading to instability and potential failure.
Innovation Solution
The anchor features a shaft, a head, a sleeve, an adjustable clamp, and a deformable plate that deforms from a confined configuration to a planar one, allowing it to expand and fill the undercut area within the bore hole, along with a kit that includes a cutting tool and resin for secure embedding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the anchor is expanded to fill the bore hole, then the anchoring strength is improved, but material flow can still bypass the expanded portion leading to instability
Solution Approach 1:
The anchor is divided into multiple functional segments: the expandable body for filling the bore hole, the deformable plate for creating an undercut barrier, and the head for load distribution. This segmentation allows each component to perform its specific function effectively, preventing material flow while maintaining anchoring strength.
Solution Approach 2:
The deformable plate transitions from a compact configuration to an extended planar configuration, creating a two-dimensional barrier within the three-dimensional bore hole. This dimensional change allows the plate to effectively block material flow paths that would otherwise bypass the expanded anchor portion.
2Device complexity
If a simple expansion mechanism is used, then the device complexity is reduced, but the anchor cannot effectively prevent material flow past the expanded portion
Solution Approach 1:
The deformable plate is designed to automatically deform and extend when the anchor body expands, without requiring additional actuators or complex mechanisms. The plate's elasticity allows it to self-adjust and create the undercut barrier as the anchor is installed and expanded.
3Ease of operation
If the anchor expands uniformly in all directions, then the installation process is simplified, but the anchor cannot create an effective undercut to stop material flow
Solution Approach 1:
The deformable plate is positioned and oriented to deform locally at specific locations where material flow needs to be blocked. The plate's selective deformation creates localized undercuts at critical points rather than requiring uniform expansion in all directions, maintaining installation simplicity while achieving effective material flow prevention.
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
This solution provides a secure and stable anchoring system by expanding the deformable plate within the undercut area, ensuring the anchor is firmly embedded and resistant to material flow, enhancing the structural integrity of the embedded structure.
Implementation Method 1
a deformable plate positioned on the shaft between the head and the sleeve so that movement of the sleeve along the shaft towards the head deforms the plate from a configuration where the plate is substantially confined to an area within the perimeter of the head into a substantially planar configuration
Data Source
AI summary
Disclosed is an anchor having a sleeve and a concentric shaft having head at one end with a rectangular plate through with the shaft interposed between the head and the adjacent end of the sleeve. A deformable plate is positioned on the shaft between the head and the sleeve so that movement of the sleeve along the shaft towards the head deforms the plate from a configuration where the plate is substantially confined to an area within the perimeter of the head into a substantially planar configuration where the perimeter of the plate extends at least partially beyond the perimeter of the head. Also disclosed is a method of fixing the anchor in a bore hole with the ends of the plate in an undercut in the bore hole and filling the bore hole with resin while venting air via a passage extending from adjacent to a closed end of the bore hole through a suitable cover.