Double-Spring Grill Hinge Structure for Angle Hold and Sealing
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Solution Overview
Problem
Existing grill hinges for outdoor ovens have complex structures with numerous parts, leading to inefficient transmission, high assembly costs, and short spring life due to constant compression of springs, resulting in suboptimal performance and increased production costs.
Innovation Solution
A grill damping hinge design featuring a C-shaped hinge with overlapping covers, arcuate grooves, and parallel grooves for spring shafts, allowing for adjustable ear holes and a double-axis double-spring mechanism that ensures secure connection and easy adjustment, reducing the need for complex screws and nuts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional spring hinge structure with fixed housing and movable housing is used, then the opening-and-closing function is achieved, but the structure becomes complex with many parts and complicated positioning
Solution Approach 1:
The patent merges the fixed housing and movable housing into a single integrated hinge body. The hinge body itself contains the pivot axis and spring mechanism, eliminating the need for separate housing components and positioning accessories. This consolidation reduces the total number of parts while maintaining the opening-and-closing function.
Solution Approach 2:
The hinge body serves multiple functions simultaneously: it acts as the structural housing, contains the pivot axis for rotation, houses the spring mechanism for damping, and provides the mounting interface. This multi-functionality eliminates the need for separate components and simplifies the overall structure.
2Reliability
If traditional transmission parts are used in the hinge, then the opening-and-closing motion is transmitted, but the transmission efficiency is low due to too many transmission parts
Solution Approach 1:
The patent extracts and eliminates unnecessary transmission parts from the hinge structure. The hinge body directly transmits motion through its integrated design, removing intermediate transmission components that were present in traditional structures. This reduces friction and mechanical losses, improving transmission efficiency.
3Stability of the object's composition
If the spring is always in a compressed state in traditional hinges, then the closed stable state is maintained, but the spring force is lost and the spring life is shortened
Solution Approach 1:
The patent implements a dynamic spring mechanism where the spring can transition between compressed and relaxed states. The spring is compressed during door closure to provide damping force, then relaxes when the door is open, preventing permanent deformation and extending spring life while maintaining closed stability when needed.
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 design enhances sealing, safety by allowing the oven cover to stay open at any angle up to 58°, reduces assembly complexity, and offers high temperature resistance with a more efficient and cost-effective solution.
Implementation Method 1
a spring shaft is fixed between the upper cover shaft pressing rod and the lower cover shaft fixing rod, and the spring shaft is penetratingly provided with a hinge spring
Implementation Method 2
both ends of the upper cover shaft are passed through the arcuate grooves and penetrate the upper cover of the hinge, the cover shaft is sleeved with an upper cover shaft pressing rod
Data Source
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AI summary
Disclosed is a grill damping hinge comprising a hinge lower cover and a hinge upper cover covering the top of the hinge lower cover,The invention can adopt double-axis double spring pressing design, and the hinge ear can be adjusted back and forth, and can be easily adjusted when the oven body and the oven cover are different in size, to ensure the sealing effect;The upper cover of the invention is lighter during opening and closing, and the opening-and-closing of the oven cover can stay at any angle within 0 to 58° , thereby avoiding the natural falling of the oven cover and having higher safety performance; In the production process of the invention, the cumbersome link of the screws and the nuts in the traditional hinge is avoided, and the manual installation and commissioning cost can be greatly saved.