Anti-deformation hinge with preload adjustment
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Solution Overview
Problem
Conventional hinges suffer from tolerance deviations, deformation under heavy loads, and friction-induced noise due to their metal construction, leading to reduced stability and quality in use.
Innovation Solution
An anti-deformation hinge with a preload adjustment function, featuring slidably connected plates with reinforcing features and a spring mechanism, which allows for precise adjustment of compactness and preload between components to enhance stability and reduce deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the adjustment combination seat is composed of multiple punched metal plates with metal conductance surface treatment, then the hinge achieves adjustable installation position, but the tolerance deviation between connections is large causing shaking and noise during operation
Solution Approach 1:
The patent merges multiple separate metal plates into a single integrated non-metallic component structure. The adjustment combination seat is formed as one piece without requiring multiple punched plates connected together, eliminating the connection tolerance deviations and shaking between separate components while maintaining the adjustable installation position function.
Solution Approach 2:
The patent replaces traditional metal plates with non-metallic materials (such as engineering plastics) for the adjustment combination seat. This composite material approach eliminates the tolerance accumulation and connection instability inherent in assembled metal plate structures, providing both adjustability and operational stability without shaking or noise.
2Adaptability or versatility
If the upper adjusting plate is punched to form hollow parts for sliding connection, then the hinge achieves adjustable position, but the side part of the upper adjusting plate deforms under heavy load causing loosening and noise
Solution Approach 1:
The patent uses non-metallic materials with high strength-to-weight ratio and excellent dimensional stability to replace the punched metal upper adjusting plate. This eliminates deformation under heavy loads while maintaining the sliding connection and adjustment functionality, preventing loosening and noise generation.
Solution Approach 2:
The patent integrates the hollow sliding connection features directly into the molded non-metallic component structure rather than punching separate holes in metal plates. This unified structure eliminates weak points at punched edges that would deform under load, providing both adjustability and structural strength.
3Adaptability or versatility
If the adjustment combination seat uses multiple punched metal plates connected by screws, then the hinge achieves adjustable installation, but friction between plates causes wear and large fit clearance over time
Solution Approach 1:
The patent combines multiple separate metal plates into a single integrated non-metallic component, eliminating the screw connections and friction interfaces between plates. This removes the wear mechanism entirely while preserving the adjustable installation capability through integrated design features.
Solution Approach 2:
The use of non-metallic materials with low friction coefficients and high wear resistance eliminates the friction-induced wear problem between connected plates. The material properties prevent clearance generation over time while maintaining adjustability function.
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 solution improves assembly accuracy, load-bearing strength, and reduces noise, ensuring enhanced stability and quality of the hinge's operation by adjusting the compactness and preload between plates.
Implementation Method 1
An anti-deformation hinge with a preload adjustment function, comprising: an outer fixing cup and an adjustment combination seat
Implementation Method 2
a spring mechanism, which allows for precise adjustment of compactness and preload between components
Implementation Method 3
the upper adjusting plate is provided with reinforcing bumps located at two sides of the crank and connected with the two sides of the crank
Implementation Method 4
friction may occur between one plate and another plate of the adjustment combination seat
Implementation Method 5
it is easy to wear a connection between the plates
Data Source
AI summary
The invention provides an anti-deformation hinge with a preload adjustment function, comprising an outer fixing cup being hinged with the adjustment combination seat and opened or closed on an adjustment combination seat around a hinging position, the adjustment combination seat comprises an upper adjusting plate, a middle adjusting plate and a bottom adjusting plate. The upper adjusting plate is integrally formed with a crank hinged with the outer fixing cup. The upper adjusting plate is provided with an adjusting sliding connecting piece. The middle adjusting plate is provided with a preload lug, and the bottom adjusting plate is slidably arranged on the middle adjusting plate and is slidably connected with the preload lug. The hinge is simple in structure and has a preload adjustment function, improve the assembly accuracy, enhance the load-bearing strength, reduce the deformation probability, and increase the use stability of the hinge.