Angle-Adjustable Self-Closing Hinge for Sealed Doors
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Solution Overview
Problem
Existing angle-adjustable and self-closing hinges for highly sealed doors face issues with air leakage and poor practicability due to direct rotation and connection mechanisms using upper and lower bushings, which hinder effective sealing.
Innovation Solution
An angle-adjustable positioning and self-closing hinge design incorporating a hinge part with a bushing, a fixing base, a fixing bar, a threaded sleeve, and an adjustment base, utilizing magnetic forces and springs to adjust and secure the hinge's leaf at predetermined angles, ensuring self-positioning and self-closing functionality while enhancing sealing through a sliding ring mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If direct rotation and connection mechanism using upper and lower bushings is used, then the hinge structure is simple, but air leakage occurs and sealing performance deteriorates
Solution Approach 1:
The hinge is divided into multiple functional modules: connection component with first bushing, hinge component with second bushing, magnetic positioning mechanism with magnets and springs, and sealing structure with sealing ring. Each module performs a specific function, allowing the system to achieve both simplicity and effective sealing by distributing functions across segmented components rather than using a single complex mechanism.
2Object-affected harmful factors
If magnetic positioning mechanism with multiple components is added, then sealing performance and angle adjustment capability are improved, but device complexity increases
Solution Approach 1:
The magnetic positioning mechanism uses magnetic attraction forces between the first and second magnets to automatically position the hinge at predetermined angles without requiring external actuators or complex control systems. The springs provide self-closing force that automatically returns the hinge to the closed position, eliminating the need for motors, sensors, or complex mechanical return mechanisms.
Solution Approach 2:
Traditional mechanical positioning mechanisms using gears, cams, or linkages are replaced with a magnetic field-based positioning system. The magnetic attraction between the first magnet in the connection component and the second magnet in the hinge component provides precise angular positioning without mechanical contact, reducing wear and simplifying the overall structure while improving sealing performance.
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 allows for precise adjustment and self-closing of the hinge at various angles, improving sealing efficacy and reducing air leakage, thus enhancing the practicality and applicability of the hinge in highly sealed environments.
Implementation Method 1
The first magnet and the second magnet are arranged in the sleeve such that a magnetic force attracts each of the magnets toward the other
Implementation Method 2
The first spring abuts between the fixing bar and a front end face of the cup body... The second spring abuts the plug at one end and abuts the second magnet at the other end
Data Source
AI summary
Provided is an angle-adjustable positioning and self-closing hinge for a highly sealed door, comprising a hinge part, a fixing base, a fixing bar, a threaded sleeve, a threaded ring, a plug, and an adjustment socket; the hinge part is provided with a bushing and a leaf; the fixing base is provided with a bushing; the fixing bar has a screw; a threaded sleeve is fastened inside the bushing, the plug is fastened inside the bushing, and the threaded sleeve and plug are spaced apart; between the threaded sleeve and plug in the two bushings are disposed the fixing bar, the two magnets, two springs, and the adjustment base; the screw of the fixing bar is screwed to the threaded sleeve.