Retractable Hinge Pin Cabinet Door for Access and Grounding
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Solution Overview
Problem
There is a need for network cabinets that provide easy access to internal components for cable connections and offer efficient grounding solutions, while minimizing obtrusiveness and enhancing convenience.
Innovation Solution
The network cabinet design includes a door with a retractable hinge pin system, flexible handle connections, and a spring-loaded hinge assembly for easy access and grounding, allowing for secure and convenient installation and removal of components without the need for separate grounding jumper wires.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional fixed hinge pins are used, then the cabinet door structure is simple and reliable, but the door cannot be easily removed or repositioned for cable access
Solution Approach 1:
The hinge pin is designed to be retractable rather than fixed, allowing it to move between extended and retracted positions. When retracted, the door can be easily removed for cable access; when extended, the door is securely hinged. This dynamic characteristic resolves the contradiction between ease of operation and device complexity.
Solution Approach 2:
The hinge mechanism is divided into separate components: the hinge pin, the rod with apertures, the pawl, and the tooth. This segmentation allows the pin to be independently controlled and retracted, enabling easy door removal while maintaining a relatively simple overall structure through modular design.
2Reliability
If multiple grounding points are provided on the cabinet, then grounding reliability is improved, but the grounding system becomes more complex and requires multiple jumper wires
Solution Approach 1:
The retractable hinge pin serves multiple functions: it provides the hinge mechanism for door attachment and simultaneously serves as a grounding conductor when extended. This multi-functionality achieves reliable grounding through a single point of contact while avoiding the need for separate grounding jumper wires, thus resolving the contradiction between grounding reliability and system complexity.
3Reliability
If the hinge pin remains extended for secure door attachment, then door security is improved, but cable access to internal components becomes obstructed
Solution Approach 1:
The hinge pin's retractable design allows it to dynamically change position based on operational needs. When cable access is required, the pin is retracted to clear the access path; when door security is needed, the pin is extended to secure the door. This dynamic positioning resolves the contradiction between door security and cable access convenience.
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 provides enhanced accessibility and grounding capabilities, ensuring secure and efficient cable management while simplifying the installation and maintenance processes, and ensuring the cabinet remains grounded with a single point of contact.
Implementation Method 1
A resilient member is also disposed within the internal cavity and biases the plunger into the extended position
Data Source
AI summary
A network cabinet is provided comprising a door and a handle, which is mounted to the door and moveable between a first position and a second position. A retractable hinge pin is interconnected with the handle through a rod, which has a plurality of apertures associated therewith. The hinge pin is in an extended position with the handle in the first position and in a retracted position with the handle in the second position. A pawl is interconnected with the door and has at least one tooth protruding from a first end. The tooth engages at least one of the apertures with the door in an open position, thus preventing extension of the hinge pin from the retracted position.