Rack-and-Gear Slide Rail for Stable Server Chassis Positioning
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Solution Overview
Problem
Existing mounting apparatuses for electronic devices, such as servers, lack sufficient positioning structures, leading to instability when drawing or pushing the devices in or out of racks.
Innovation Solution
A sliding unit with a mounting plate, gears, and a positioning structure is integrated into the chassis, paired with a slide rail featuring resilient raised portions and a locking mechanism, allowing for stable sliding and secure attachment to a shelf.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If mounting apparatus has less positioning structures, then device complexity is reduced, but stability during drawing or pushing servers is worsened
Solution Approach 1:
The mounting apparatus is segmented into multiple functional components: a sliding unit with gears for movement, a positioning structure with stop members and resilient members for stability, and a locking mechanism with locking blocks and slots for secure attachment. This segmentation allows each component to perform its specific function effectively, resolving the contradiction between simplicity and stability.
Solution Approach 2:
The positioning structure performs preliminary action by pre-positioning the sliding unit at specific locations along the slide rail using stop members. The resilient members pre-load the system to maintain contact between gears and rack, ensuring stability is established before the actual drawing or pushing operation begins.
2Stability of the object's composition
If mounting apparatus has more positioning structures, then stability during drawing or pushing is improved, but device complexity increases
Solution Approach 1:
The positioning structure serves multiple functions simultaneously: it positions the sliding unit along the rack, maintains gear engagement through resilient members, and works with the locking mechanism to secure the server. This multi-functionality achieves stability without proportionally increasing complexity, as one integrated structure performs several stabilizing roles.
Solution Approach 2:
The resilient members automatically maintain contact between the gears and rack through elastic deformation, and the locking mechanism self-engages when the sliding unit reaches the end of the slide rail. This self-service behavior provides stability without requiring additional active control systems or complex positioning mechanisms.
3Ease of operation
If gears are allowed to rotate freely, then ease of operation is improved, but reliability is worsened due to reverse rotation
Solution Approach 1:
The positioning structure with stop members and resilient members applies preliminary anti-action by maintaining constant contact pressure between the gears and rack. This pre-established contact prevents the gears from disengaging or rotating in reverse during operation, while still allowing smooth forward movement when force is applied.
Solution Approach 2:
The resilient members act as intermediaries between the gears and the mounting plate, transmitting motion while maintaining engagement. They absorb shocks and maintain continuous contact, preventing reverse rotation without creating excessive friction that would hinder ease of operation.
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 enables stable and controlled sliding of electronic devices into and out of the shelf, preventing reverse rotation of gears and ensuring secure locking, thereby enhancing the stability and usability of the mounting apparatus.
Implementation Method 1
a resilient member 1155 set around the shaft 1151 and received in the receiving member 1153 to push the stop member 1154 toward the gear 113
Implementation Method 2
The slide rail 20 includes a rack 21 perpendicularly formed on an inner side surface of the slide rail 20 facing the chassis 10
Implementation Method 3
A locking block 25 is formed from a back end of the rack 21
Data Source
AI summary
A mounting apparatus is used for slidably mount a chassis of an electronic device to a shelf. The mounting apparatus includes two spaced gears pivotably attached to the chassis and a slide rail fixed to the shelf. The slide rail includes a rack to mesh with the gears.