Liquid Container Grate Rods Redundant Welding Clinching
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Solution Overview
Problem
Transport and storage containers for liquids experience instability and damage during stacking and transportation due to sliding, static bending stresses, and impact loads, which lead to failure of welded connections between the grate rods and the edge profiles, resulting in transportation damage.
Innovation Solution
The use of triple dot welding combined with clinch connections for the upper and possibly lower ends of the vertical grate rods to a circumferential border profile of the grate casing ensures a secure and frictionally engaging attachment, providing a backup fastening mechanism to prevent separation under static and dynamic loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If only welded connections are used to attach grate rods to the edge profile, then the manufacturing process is simple, but the connection fails under static and dynamic loads
Solution Approach 1:
The connection system is divided into two independent parts: welded connections and clinch connections. Each part can function independently, and together they provide redundant attachment points that distribute loads more effectively, preventing failure under static and dynamic conditions.
Solution Approach 2:
The clinch connections serve as a pre-prepared backup mechanism that activates automatically when welded connections fail under load. This beforehand cushioning ensures continuous support for the grate rods without requiring complex active failure detection systems.
2Reliability
If multiple connection methods are used, then the connection reliability is improved, but the manufacturing process becomes more complex
Solution Approach 1:
The patent combines welded connections and clinch connections into a unified attachment system. Both connection methods are applied to the same grate rod-edge profile interface, creating a synergistic effect where the combined system achieves higher reliability than either method alone while maintaining manufacturing efficiency.
3Stability of the object's composition
If the grate rods are securely fastened, then the container stability is improved, but the device complexity increases
Solution Approach 1:
The connection system is designed to dynamically adapt to different loading conditions. The welded connections provide rigid attachment under normal conditions, while the clinch connections provide additional reinforcement under extreme static and dynamic loads, automatically distributing forces to maintain stability without requiring complex active control systems.
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 enhances the stacking and transportation safety of the containers by maintaining a resistant and positively engaging connection, ensuring the secure fastening of the grate rods to the edge profiles even under failure of one type of connection, thereby reducing the risk of transportation damage.
Implementation Method 1
connected by a frictionally and positively engaging connection to a circumferential web which is integrally formed with the upper edge profile of the grate casing by means of dot welded connections and clinch connections
Implementation Method 2
frictionally and positively engaging connection
Data Source
AI summary
A transport and storage container for liquids has as principal components a palette-like bottom frame for an exchangeable inner container of synthetic material and a grate casing with horizontal and vertical grate rods of metal for receiving the inner container. The vertical grate rods connected with their upper ends to the upper border profile of the grate casing by dot welding and clinching. As a result of the two-fold connection by positive and frictional engagement of the vertical grate rods to the upper circumferential border profile of the grate casing ensures that, when the dot welded connections fail, the fastening of the vertical grate rods to the upper border profile of the grate casing is ensured by the clinch connection and, when the clinch connection fails, the fastening of the grate rods to the upper border profile of the grate casing is ensured by the dot welded connections.