Switchable Damping Hinge Assembly for Heavy Door Closing
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Solution Overview
Problem
Existing damping hinges are prone to abnormally slow closing or failure to close due to the heavy weight of the door body or long service life, leading to inefficiencies and potential failure.
Innovation Solution
A damping hinge with a switch toggle member that can be moved from a first position to a second position to restrict the movement of the damper, thereby restoring normal operation by reducing or eliminating the resetting action of the damper, enhancing door closing speed and service life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the door body is heavy or has long service life, then the damping hinge provides buffering function, but the damping torque decreases resulting in abnormally slow closing or failure to close
Solution Approach 1:
The patent applies the dynamics principle by making the damping torque adjustable through a switching mechanism. The damping assembly can be toggled between a first state (with damping torque) and a second state (without damping torque), allowing the system to adapt its characteristics dynamically. This resolves the contradiction by enabling the hinge to provide damping when needed while allowing fast closing when the damper becomes ineffective due to wear or heavy door weight.
Solution Approach 2:
The patent changes the damping torque parameter from fixed to variable. By introducing a switching mechanism that can alter the damping torque from a non-zero value to zero, the system can maintain reliable door closing performance. When the damper wears out or cannot handle heavy doors, the parameter changes to eliminate damping torque, preventing abnormally slow closing while maintaining the option to provide damping when conditions are favorable.
2Stability of the object's composition
If the damper provides continuous resetting action, then the door closes smoothly, but the service life of the damping hinge decreases due to wear
Solution Approach 1:
The patent applies periodic action by allowing the damper to operate intermittently rather than continuously. The switching mechanism enables the user to activate damping only when needed (first state) and deactivate it (second state) when the door closes smoothly without damping or when the damper has worn out. This periodic engagement reduces cumulative wear on the damper components while maintaining door closing smoothness when the damping function is active.
Data Source
AI summary
The present application discloses a damping hinge and a damping assembly, the damping hinge comprises: a cup body member, an arm body member, a rotating arm member for connecting the cup body member and the arm body member, and a damping assembly located in a cup body cup body cavity, wherein the damping assembly comprises: a damper, located in the cup body cup body cavity, a side ear body being provided at one side of the damping member; an oil cylinder sleeve seat, fixed in the cup body cavity, comprising a movement cavity for the damper to move and a track for the side ear body to move; a switch toggle member, movably connected to a sleeve seat platform of the oil cylinder sleeve seat, the switch toggle member comprising a toggle column extending into the sleeve seat platform, wherein under the action of external force, the switch toggle member is toggled from a first position to a second position. The present application solves the problem of a door closing being abnormally slow or unable to close due to the weight of the door being too large or the service life being too long; the service life of the damping hinge is improved.