Self-Penetrating Wall Anchor With Threaded Locking Recess
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Solution Overview
Problem
Existing wall anchoring methods, such as nails and screws, are inadequate for securing heavy objects to hard walls without predrilling, as they provide insufficient pulling force resistance and lack a locking mechanism to prevent object release.
Innovation Solution
A self-penetrating wall anchor with a rigid body featuring a piercing distal-end for direct hammering into hard walls and an axial threaded recess for receiving a screw, eliminating the need for predrilling and providing enhanced anchoring support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a nail is used to secure an object to a wall, then the installation is simple and quick, but the pulling force resistance is insufficient and no locking mechanism exists
Solution Approach 1:
The wall anchor is divided into two functional segments: a piercing distal-end for penetration and an axial threaded recess for screw reception. This segmentation allows the anchor to combine the simplicity of nail installation with the strength of threaded fastening, resolving the contradiction between ease of operation and pulling force resistance.
Solution Approach 2:
The screw is nested within the axial threaded recess of the wall anchor, creating a locked assembly. This nested structure provides the locking mechanism that prevents object release while maintaining the simple two-step installation process of hammering the anchor followed by screwing the screw.
2Strength
If a screw is used to secure an object to a wall, then the pulling force resistance is improved, but predrilling is required which complicates the installation process
Solution Approach 1:
The wall anchor merges the functions of a pre-drilled hole creator and a threaded fastener receiver into a single component. The piercing distal-end creates the penetration path while the axial threaded recess accepts the screw, eliminating the need for separate predrilling operations and reducing installation complexity.
Solution Approach 2:
The piercing distal-end of the wall anchor performs the self-service function of creating its own installation path by penetrating the wall surface during hammering. This self-creating penetration path eliminates the need for external predrilling, simplifying the installation process while maintaining screw-based pulling force resistance.
3Strength
If an expanding wall anchor is used to enhance pulling force resistance, then the anchoring strength is improved, but the device complexity increases due to the expansion mechanism
Solution Approach 1:
The invention extracts the essential function of creating a secure anchor point from the complex expanding mechanism. By using a simple rigid body with a piercing distal-end and axial threaded recess, the patent achieves reliable anchoring strength without the mechanical complexity of expansion components, springs, or deformation mechanisms.
Solution Approach 2:
The wall anchor employs a simple, inexpensive rigid body structure that achieves its anchoring function through straightforward penetration and threaded engagement. This simpler, less complex design replaces the more complicated expanding anchor mechanism while providing sufficient anchoring strength for the intended application.
Data Source
AI summary
The present invention provides a single-piece self-penetrating wall anchor for anchoring an article to a hardwall, said wall anchor comprising a rigid body having: (i) an outer wall(s); (ii) a piercing distal-end for penetrating into said wall (without prior drilling); and (iii) an open proximal-end leading to an axial threaded recess for receiving a screw, wherein said rigid body is non-deformable and having a hardness of at least 40 HRC (Hardness Rockwell C), such as that is does not change in shape upon insertion into a concrete/brick wall, and/or upon receiving a screw into said axial threaded recess.