Hinged Slide Rail Buffering Structure for Controlled Cabinet Door Closure
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Solution Overview
Problem
Existing hinged slide rail systems fail to effectively control the opening angle of cabinet doors, leading to inconvenience and potential damage, and do not adequately mitigate noise and user safety issues during door closure due to reliance on friction forces and limited movement strokes.
Innovation Solution
A hinged slide rail structure incorporating a buffering device, such as a pneumatic or hydraulic system, with a retention frame and limiting slots to control the door's opening angle and slow down its closure, combined with a tension spring for effort-saving operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a telescopic buffering device and friction-based swinging element are used to slow door closure, then noise and user safety are improved, but device complexity and operational reliability deteriorate due to heavy dependence on friction force and limited movement stroke control
Solution Approach 1:
The patent employs a pneumatic buffering device (gas spring) to replace the friction-based mechanical buffering system. The gas spring provides controlled damping force through gas compression and expansion, eliminating the need for friction-dependent swinging elements while maintaining noise reduction and safety functions. This pneumatic approach offers more reliable and adjustable buffering performance.
Solution Approach 2:
The patent introduces a limiting mechanism with adjustable parameters to control the door's opening angle and movement range. By changing the geometric parameters of the limiting structure (such as the position of limiting blocks or adjustable stops), the system can precisely control the door's trajectory and opening degree, improving operational reliability without increasing overall complexity.
2Speed
If friction force between swinging element and movable rail is used for buffering, then slow descending effect is achieved, but operational smoothness and opening degree control deteriorate due to heavy dependence on friction force
Solution Approach 1:
The patent replaces friction-based speed control with pneumatic damping through a gas spring mechanism. The gas spring provides controlled resistance to door movement through gas compression, enabling smooth and consistent slow descending motion without relying on friction. This pneumatic approach ensures operational smoothness while maintaining可控able opening degrees.
Solution Approach 2:
The patent substitutes the mechanical friction-based swinging element system with a pneumatic buffering device. This replacement eliminates the drawbacks of friction dependency (uneven operation, limited control) while achieving the desired slow descending effect through gas spring damping characteristics.
3Reliability
If movement stroke of telescopic buffering device is limited to control opening degree, then door panel safety is improved, but convenience of use deteriorates due to over-limitation or excessive movement restrictions
Solution Approach 1:
The patent employs an adjustable limiting mechanism that allows the movement stroke and opening angle parameters to be modified according to different usage requirements. The limiting blocks or stops can be repositioned to change the maximum opening degree, providing both safety protection and operational convenience through parameter adjustability rather than fixed restrictions.
Solution Approach 2:
The patent introduces a dynamic limiting system where the constraint parameters can change based on operational needs. The adjustable limiting mechanism allows users to modify the door's movement range dynamically, balancing safety requirements with convenience needs, rather than using fixed static limitations.
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 enhances user safety by preventing door clamping and noise, while allowing for controlled and smooth door operation, reducing the effort required for opening and ensuring safe use by limiting the door's opening range and slowing its closure.
Implementation Method 1
The buffering device is selected among a pneumatic device, a hydraulic device, and a pneumatic/hydraulic device
Implementation Method 2
The buffering device is selected among a pneumatic device, a hydraulic device, and a pneumatic/hydraulic device
Implementation Method 3
combined with a tension spring for effort-saving operation
Implementation Method 4
The operation smoothness of sliding of the slide rail slow descending device 30 is heavily dependent upon the friction force between the swinging element 35 and the movable rail 34
Implementation Method 5
When the door panel 21 is pulled out, it is still subjected to the action of the gravity and thus falls down to induce a noise of impact
Data Source
AI summary
A hinged slide rail with buffering function, which includes a rail to which a hinge is mounted. The hinge has a movable blade and a fixed blade between which a buffering device is coupled. The buffering device is housed in a retention frame. The retention frame has an end forming a limiting structure. The buffering device has an active rod coupled to the limiting structure. The movable blade includes a pull bar that is connected to the limiting structure. The hinged slide rail is installed between a door panel and a body of a cabinet to remarkably enhance the convenience of operation and eliminates the potential problems of generating noise and clamping and hurting users.