Hook with Stepped Rivet and Bolt Assembly for Firm Surface Mounting
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Solution Overview
Problem
Existing hooks are limited in practical application due to their reliance on suckers or stickers for attachment, which are not suitable for all surfaces and have limited loading capacity.
Innovation Solution
A hook design featuring a rivet with two steps and cut surfaces, combined with a fixing bolt, providing a secure and adjustable attachment mechanism using a hook seat, positioning through holes, and a positioning slot for flexible installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a sucker or sticker is used to fix the hook on the wall, then the installation process is simple, but the loading capacity is limited and not suitable for all surface types
Solution Approach 1:
The hook is divided into separate components: a hook seat, a rivet with rivet cap and rivet post, and a fixing bolt. This segmentation allows for a more robust mechanical connection compared to integrated sucker or sticker-based hooks, enabling higher loading capacity while maintaining reasonable installation complexity through modular assembly
Solution Approach 2:
The hook employs a composite structure combining metallic components (rivet, fixing bolt, hook seat) with different material properties. The rivet post and fixing bolt provide mechanical strength for high loading capacity, while the overall design maintains installation feasibility through standardized fastening procedures
2Strength
If a rivet with larger diameter is used to increase fixing area, then the fixed connection becomes firmer, but the installation space requirement increases
Solution Approach 1:
The rivet structure transitions from a simple cylindrical form to a stepped configuration with varying diameters along its length. The first step features a larger diameter rivet seat for increased contact area and connection firmness, while the second step has a smaller diameter to reduce overall space requirements and fit within constrained installation areas
Solution Approach 2:
The rivet post is designed with non-uniform diameter distribution, concentrating the larger diameter (rivet seat) at the location requiring maximum contact area with the hook seat, while other portions maintain smaller diameters. This local quality variation optimizes both connection firmness and space efficiency
Data Source
AI summary
A hook includes a hook seat, a rivet, and a fixing bolt. A rivet cap and a rivet post are provided on the rivet. The rivet post includes a rivet rod and a rivet seat. A diameter of the rivet seat is greater than a diameter of the rivet rod. A first step is formed between the rivet rod and the rivet seat. A first cut surface and a second cut surface are provided on both sides of the rivet rod, respectively. The rivet and fixing bolt are matched with each other and fixed to the hook seat. The first step abuts against one side of the hook seat. An end face of the fixing bolt abuts against the other side of the hook seat to lock the hook seat between the fixing bolt and the first step.