Trapezoidal Thread Rack Rod for Shock-Resistant Mounting
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Solution Overview
Problem
Existing holding devices in data centers or storage systems are prone to looseness during transportation and shock/vibration tests, leading to potential data loss and performance issues.
Innovation Solution
A rod with a trapezoidal thread bolt and a plastic holding device with a manually rotatable handle, where the trapezoidal thread conforms to the ACME thread specification, providing enhanced shock-resistance and secure attachment to the rack.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing holding devices are used to attach machine units to the rack, then the attachment function is provided, but the devices become loose during transportation and shock/vibration tests
Solution Approach 1:
The patent changes the thread shape parameter from conventional triangular thread to trapezoidal thread. This parameter change provides better shock resistance and prevents the holding device from becoming loose during transportation and vibration, directly resolving the contradiction between attachment stability and holding device stability
Solution Approach 2:
The holding device is made from composite plastic materials (polycarbonate and acrylonitrile-butadiene-styrene copolymer) that combine mechanical strength with shock resistance. This composite material approach maintains attachment stability while preventing the holding device itself from becoming loose or failing under shock and vibration conditions
2Reliability
If conventional holding devices are used, then basic attachment is achieved, but data loss may occur due to looseness
Solution Approach 1:
By changing the thread shape to trapezoidal with optimized parameters, the holding device gains enhanced shock resistance that protects against harmful shock and vibration effects during transportation, preventing data loss while maintaining basic attachment functionality
Solution Approach 2:
The patent uses cost-effective plastic materials for the holding device that provide adequate protection against shock and vibration. While the materials are not premium, they sufficiently resist harmful factors like shock and vibration to prevent data loss, offering a practical balance between protection and cost
3Strength
If metal holding devices are used to ensure mechanical strength, then strength is provided, but manufacturing costs increase
Solution Approach 1:
The patent employs composite plastic materials (polycarbonate and acrylonitrile-butadiene-styrene copolymer) that provide mechanical strength comparable to metal while being significantly cheaper to manufacture. This material substitution maintains the required mechanical strength for holding machine units while reducing manufacturing costs
Solution Approach 2:
The holding device uses inexpensive plastic materials instead of expensive metals. These cost-effective materials provide sufficient mechanical strength for the application, substantially reducing manufacturing costs while meeting the strength requirements for securing machine units to the rack
Data Source
AI summary
Embodiments of the present disclosure provide a rod for use in a rack and a holding device for use in cooperation with the rack. The rod comprises: a first end provided with a bolt, the bolt having a trapezoidal thread, wherein when the rod is inserted into the rack through a target device, the bolt connects the first end to the rack such that the target device is secured to the rack.