Cage-Rib Anchor Structure for Impact-Resistant Protection Posts
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Solution Overview
Problem
Existing impact protection post anchors suffer from instability, uncontrolled expansion, and damage to the floor due to uncontrolled deformation, leading to potential breakage during impacts, and require curing times for installation.
Innovation Solution
An anchor design featuring a deformable portion made of a cage-like structure with alternating cylindrical bodies and deformable ribs, ensuring controlled expansion and strong anchoring, allowing for complete filling with cement and preventing breakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If drilling anchors with expansion sleeves are used, then installation is faster without waiting for curing, but the anchors are not impact-resistant and often pulled out damaging floors
Solution Approach 1:
The deformable portion is segmented into multiple deformable ribs (at least three) that can independently expand and contact the hole wall at different locations. This segmentation distributes the impact forces across multiple contact points, enhancing overall impact resistance while maintaining the quick installation advantage of expansion anchors.
Solution Approach 2:
The anchor employs local quality enhancement by creating concentrated contact points between the deformable ribs and the hole wall. The deformable ribs are designed to locally deform and press against specific areas of the hole wall, generating high contact pressure at these local points to prevent pull-out during impacts.
2Loss of time
If expansion elements are used to secure barriers without waiting for grout curing, then installation time is reduced, but the anchoring becomes unstable due to uncontrolled spread
Solution Approach 1:
The expansion element is divided into multiple deformable ribs that expand in a controlled, segmented manner. Each rib expands independently to contact the hole wall, preventing uncontrolled spread along the entire length of the anchor. This segmentation ensures stable anchoring by creating discrete contact zones rather than allowing uniform expansion.
Solution Approach 2:
The deformable ribs are designed to dynamically adapt to the hole wall geometry. When the threaded rod is tightened, the ribs deform and expand to contact the hole wall, creating a dynamic adjustment mechanism that ensures stable anchoring regardless of minor variations in hole dimensions or wall irregularities.
3Strength
If deformable portions with appendages are used to expand into hole walls, then anchoring strength is improved, but indentations are created in the hole wall acting as notches that cause breakage during impacts
Solution Approach 1:
Instead of creating indentations by forcing rigid appendages into the hole wall, the invention inverts the approach by using deformable ribs that conform to the hole wall surface. The ribs deform elastically to contact the wall without creating permanent indentations, thus maintaining hole wall integrity while still achieving strong anchoring.
Solution Approach 2:
The deformable ribs change their physical parameters (shape, volume) during expansion. They deform from a compact state to an expanded state, increasing their contact surface area with the hole wall. This parameter change allows them to distribute contact forces over a larger area, reducing localized stress that would cause indentations and subsequent breakage.
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
The anchor provides high strength and stability, preventing breakage of the impact protection post and ensuring complete cement flow without damaging the floor, facilitating easy relocation.
Implementation Method 1
the deformable portion is destined to deform and enter into contact with the wall of the hole in the floor
Implementation Method 2
the deformable ribs and cylindrical bodies together form an integral unit, with the vertical deformable ribs projecting beyond the outer contour of the cylindrical bodies at least in part of their length
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The anchor (1) comprises an abutting cross plate (5), a threaded seating (6) connected to the abutting cross plate (5) and arranged above it, a deformable portion (7) connected to the threaded seating (6) and arranged above it, and a threaded rod (8) that passes through the deformable portion (7) into the threaded seating (6). The deformable portion (7) is made as a cage consisting of an upper cylindrical body (9) and a lower cylindrical body (10). The cylindrical bodies (9, 10) are hollow, and deformable ribs (11) alternating with gaps (12) are vertically arranged between the cylindrical bodies (9, 10). The upper ends (13) of the deformable ribs (11) are connected to the upper cylindrical body (9) and the lower ends (14) of the deformable ribs (11) are connected to the lower cylindrical body (10) so that the deformable ribs (11) and cylindrical bodies (9, 10) together form an integral unit, with the deformable ribs (11) projecting beyond the outer contour of the cylindrical bodies (9, 10) in part of their length.