Furniture Hinge Damper With Variable Flow Path Pressure Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing shock-absorbing dampers for furniture hinges struggle to maintain a uniform opening and closing speed regardless of the size or weight of the furniture door, due to limitations in adjusting the number or weight of check valves and flow paths, leading to inconsistent shock absorption and noise.
Innovation Solution
A variable shock-absorbing damper with a pressure adjustment mechanism, comprising a housing, load pin, main valve, check valve, guider, and pressure adjuster, which controls fluid flow paths to maintain consistent speed by deforming according to fluid pressure, ensuring uniform operation across different door sizes and weights.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the number or weight of check valves is adjusted to control fluid flow speed, then the flowing speed can be controlled, but it is substantially impossible to separately adjust the number or weight of the check valve to fit the size or weight of the furniture door
Solution Approach 1:
The patent applies the dynamics principle by making the flow path variable rather than fixed. The flow path area is dynamically adjusted based on the load (furniture door weight) through a mechanism that allows the flow path cross-sectional area to change, enabling the same damper to adapt to different door weights and sizes while maintaining consistent closing speed.
Solution Approach 2:
The patent changes the physical parameter of the flow path cross-sectional area to control fluid flow speed. By varying this parameter in response to different load conditions, the system achieves adaptability across different furniture door specifications without requiring multiple dampers with different fixed configurations.
2Speed
If the number or size of the flow path or the gap is adjusted to control the flowing speed of the working fluid, then the flowing speed can be controlled, but it is substantially impossible to separately adjust the number or size of the flow path or the gap to fit the size or weight of the furniture door
Solution Approach 1:
The patent makes the flow path area dynamic rather than fixed. A mechanism is provided that allows the flow path cross-sectional area to vary based on the applied load, enabling the system to adapt to different furniture door weights and sizes while maintaining uniform closing speed performance.
Solution Approach 2:
The patent controls the flowing speed by changing the physical parameter of the flow path cross-sectional area. This parameter is adjusted in response to different load conditions, allowing a single damper design to serve multiple applications with different door specifications.
3Force
If a strong or weak external force is applied to the piston, then the piston movement varies, but the flowing speed of the working fluid cannot be controlled only by the check valve
Solution Approach 1:
The patent controls the flowing speed by changing the physical parameter of the flow path cross-sectional area rather than relying solely on check valve adjustments. This parameter change mechanism ensures that the fluid flow speed remains controlled even when the external force on the piston varies, providing consistent performance across different operating conditions.
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 ensures consistent opening and closing speeds, minimizing noise and contact resistance, thereby extending the lifespan and improving reliability of the damper.
Implementation Method 1
a pressure adjuster interposed between the main valve and the check valve and configured to be deformed according to the pressure of the fluid to control a flow amount of the first flow path or the second flow path
Implementation Method 2
a guider configured to expanded or returned to its original position by a pressure of the working fluid while being coupled to the main valve to guide a fluid flow
Data Source
AI summary
A shock-absorbing damper for absorbing the impact force generated during the opening/closing of a furniture door, the damper including: a load pin in a housing to move back and forth during the opening/closing of the furniture door; a main valve coupled to the load pin to form a first flow path; a check valve coupled to a guide bar of the main valve in a manner to form a second flow path; a guider coupled to the main valve to guide the fluid flow; and a pressure adjuster interposed between the main valve and the check valve to vary the first flow path. The pressure adjuster and the guider are provided in the shock-absorbing damper to vary a flow path corresponding to an opening/closing load of the furniture door, thereby opening/closing the furniture door at a set speed regardless of the size or weight.