Hydraulic Hinge Buffer With Engaging Hooks
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Solution Overview
Problem
Conventional hydraulic hinge buffer assemblies for doors fail to provide a buffering effect when the door closes quickly due to rotating inertia or external forces, as the pushing piston cannot immediately abut the pivot pin to restrict its rotation.
Innovation Solution
The hydraulic hinge buffer assembly incorporates a pivot pin with holding hooks and a pushing piston with engaging hooks, allowing for engagement during the closing process to apply a hydraulic buffering force, preventing the door from closing quickly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the door closes quickly due to rotating inertia or external force, then the closing speed increases, but the buffering effect is lost because the pushing piston cannot immediately abut the pivot pin
Solution Approach 1:
The engaging hooks are pre-positioned on the pushing piston and pivot pin respectively. When the door begins to close, the engaging hooks automatically engage each other before the pushing piston needs to abut the pivot pin, establishing the buffering connection in advance and ensuring immediate buffering effect even at high closing speeds
Solution Approach 2:
The engaging hooks act as an intermediary mechanism between the pushing piston and pivot pin. They provide a positive engagement connection that ensures the pushing piston can immediately transmit buffering force to the pivot pin without relying solely on abutment, thereby maintaining buffering reliability during rapid closure
2Speed
If the pivot pin rotates faster than the pushing piston can push, then the buffering response time is delayed, but the door closure becomes uncontrolled
Solution Approach 1:
The engaging hooks are designed to engage automatically at the onset of pivot pin rotation, establishing the buffering connection before significant rotation occurs. This preliminary engagement ensures the pushing piston is immediately connected to the pivot pin, maintaining controlled closure even when rotation speed exceeds the piston's pushing speed
Solution Approach 2:
The engaging hooks serve as a mechanical intermediary that provides immediate positive engagement between the pushing piston and pivot pin. This intermediary connection eliminates the delay caused by waiting for the piston to abut the pin, ensuring controlled closure throughout the entire rotation process
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
This design ensures a stable and controlled closure of the door by maintaining the hydraulic buffering effect even when the door is rotated by inertia or external forces, preventing rapid closure.
Implementation Method 1
the piston element is driven by a hydraulic-buffering mechanism
Implementation Method 2
the pushing piston cannot provide a buffering effect to the pivot pin
Data Source
AI summary
A hydraulic hinge buffer assembly for a door has a fastening device, a buffering device and a clamping device. The fastening device has a holding mount and a pivot block. The buffering device is mounted in the fastening device and has a pivot pin and a piston element. The pivot pin has an abutting face and at least one holding hook. The piston element is mounted between the holding mount and the pivot pin and has a pushing piston. The pushing piston has a pressing face selectively abutting the abutting face and at least one engaging hook axially formed on and protruding from the pressing face and engaging with the at least one holding hook. The clamping device is connected to the buffering device to rotate relative to the fastening device and has two clamping panels.