Concealed Door Hinge With Adjustable Self-Closing Mechanism
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Solution Overview
Problem
Conventional door hinges with self-closing functions are either surface-mounted, which are easily damaged and affect the overall appearance, or concealed, which lack automatic closing capabilities.
Innovation Solution
A door hinge design featuring a concealed mounting mechanism with a linkage assembly, a movable body with a sliding block and self-closing mechanism, and an adjustment mechanism to control the closing power, allowing for automatic door closure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If surface-mounted hinges with self-closing function are used, then automatic closing capability is achieved, but the exposed parts damage the overall effect of the door
Solution Approach 1:
The patent embeds the self-closing mechanism inside the door hinge structure, with the telescopic structure containing the energy storage spring and closing components within the movable body. This nesting allows the automatic closing function to be hidden within the concealed hinge, eliminating exposed parts while maintaining the self-closing capability.
Solution Approach 2:
The patent introduces a telescopic structure as an intermediary mechanism that transmits the closing force from the energy storage spring to the door blade. This intermediary allows the automatic closing function to be achieved through internal mechanical action rather than external exposed components.
2Shape
If traditional concealed door hinges are used, then the overall appearance is maintained, but automatic closing function cannot be realized
Solution Approach 1:
The patent merges the concealed hinge structure with the self-closing mechanism into a single integrated unit. The movable body of the hinge contains both the linkage mechanism for concealed operation and the telescopic self-closing mechanism, combining aesthetic appearance with automatic closing function.
Solution Approach 2:
The self-closing mechanism is nested within the movable body of the concealed hinge, with the energy storage spring and telescopic structure housed inside the hinge casing. This allows the automatic closing function to be achieved without compromising the concealed appearance.
3Extent of automation
If the self-closing mechanism applies strong closing force, then automatic closing capability is improved, but noise and impact increase
Solution Approach 1:
The patent incorporates a buffer mechanism with damping components that are pre-positioned to absorb the closing force before the door blade makes contact. The energy storage spring is designed to release energy gradually, and the telescopic structure includes damping elements that cushion the closing action, reducing impact and noise while maintaining effective closing capability.
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 hinge achieves both concealed mounting and automatic closing while adapting to different door weights, ensuring smooth operation and reducing noise through a buffer mechanism.
Implementation Method 1
a telescopic structure which is extensible and retractable along a lengthwise direction of the movable body, wherein one end of the self-closing mechanism abuts against a side surface of the sliding block, and wherein the sliding block is driven to slide toward an inside of the movable body when the end of the self-closing mechanism abuts against the inclined track surface and extends
Data Source
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AI summary
Disclosed is a door hinge, comprising: a fixed body that is provided with a first connecting shaft and a second connecting shaft along the lengthwise direction therein; a linkage assembly of which both ends are respectively hinged to the fixed body and a movable body; the movable body that is provided with a sliding block capable of sliding along the depth direction of the movable body therein, one end of the sliding block being hinged to one end of the linkage assembly, and a straight track surface and an inclined track surface inclined towards the interior of the sliding block being provided at one side of the sliding block; and a self-closing mechanism that is provided on the side of interior of the movable body close to the straight track surface, has a telescopic structure, and has one end abutting against the side surface of the sliding bock. When an end portion of the self-closing mechanism abuts against the inclined track surface, the sliding block is driven to slide towards the interior of the movable body. The door hinge is a concealed hinge and also has a self-closing function.