L-Shaped Bolt Fastening Structure for Upright Grating Plate Mounting
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Solution Overview
Problem
In production facilities, fixing equipment to grating plates without altering their position is challenging and risky, as it requires workers to access and tighten fasteners at elevated heights, leading to safety hazards and potential accidents, and existing fastening methods can result in bolt wear or breakage due to improper alignment.
Innovation Solution
An L-shaped bolt fastening structure with a fall-prevention washer, anti-loosening washer, and coupling long hole washer is used, allowing for quick and secure attachment of equipment to grating plates without changing the plate's position, featuring a locking groove, upright auxiliary portion, and elastic expansion capabilities to prevent falling and ensure upright alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If equipment is fixed to grating plates using brackets and bolts at elevated heights, then equipment can be securely attached, but workers face safety hazards and the process becomes time-consuming
Solution Approach 1:
Instead of fastening the bolt from above as in conventional methods, the L-shaped bolt is inserted from below the grating plate through the hole, with the head portion engaging from underneath. This inversion allows workers to perform fastening operations at ground level rather than at elevated heights, eliminating safety hazards while maintaining secure attachment.
Solution Approach 2:
The fall-prevention washer acts as an intermediary component that prevents the bolt from falling through the grating plate hole while allowing proper engagement. This mediator enables the inverted fastening method to work reliably by ensuring the bolt remains positioned correctly during and after installation.
2Device complexity
If a conventional bolt is used without alignment features, then the structure is simple, but the bolt may become tilted causing thread wear or breakage
Solution Approach 1:
The bolt is designed with asymmetric features including an L-shape configuration and a locking groove positioned at a specific angle on the bent inner portion. These asymmetric elements provide alignment guidance during insertion, ensuring the bolt engages upright and preventing tilted fastening that would cause thread wear or breakage.
Solution Approach 2:
The locking groove and L-shaped geometry enable the bolt to self-align during insertion through the grating plate hole. The asymmetric features guide the bolt into the correct orientation automatically, eliminating the need for external alignment tools or procedures while ensuring reliable upright engagement.
3Reliability
If workers must access elevated positions to tighten fasteners, then proper fastening can be achieved, but the process becomes time-consuming and requires multiple workers
Solution Approach 1:
By inverting the fastening direction to insert the bolt from below, the entire fastening operation can be performed at ground level. This eliminates the need for workers to access elevated positions, significantly improving productivity while maintaining fastening quality through the specialized L-shaped design and locking mechanism.
Solution Approach 2:
The self-aligning features of the L-shaped bolt with locking groove enable quick and accurate engagement without requiring precise positioning or multiple workers. The bolt automatically orients itself during insertion, allowing single-worker installation at ground level while ensuring reliable fastening.
Data Source
AI summary
Disclosed is an L-shaped bolt fastening structure for upright fastening which is capable of quickly and firmly fixing equipment to a support structure such as a grating plate without changing the installed grating plate. Since a bent portion of an L-shaped bolt includes a locking groove and an upright auxiliary portion, in a state in which the L-shaped bolt is upright, a fixing nut can be fastened. Accordingly, the fixing nut can be easily and quickly coupled, and also a correct coupling posture can be implemented even after the fixing nut is completely tightened. In addition, since a coupling long hole washer that is divided and coupled is added between a bracket and a fixing nut, when the fixing nut is fastened to the L-shaped bolt, the fixing nut can be fastened in a state in which the L-shaped bolt is upright.