Slide rail locking device
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Solution Overview
Problem
Conventional slide rail locking devices experience weakened locking force and deformation due to consistent movement and torsional stress when attached to vertical supporting bars, requiring additional supporting bars for stability, increasing manufacturing and installation costs.
Innovation Solution
A slide rail locking device design featuring upper and lower locking plates, a connection plate, and an extended plate, with a gap formed between the device and the vertical supporting bar, allowing for easier attachment and detachment while maintaining locking force, reducing torsional stress, and enabling secure attachment with a single supporting bar.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the slide rail locking device is mounted to the supporting bar in a forcible fitting manner, then the locking force is initially strong, but the device becomes deformed or detached due to consistent movement and collision against the vertical support bar
Solution Approach 1:
The locking device is designed with a resilient portion that can elastically deform, transforming the rigid forcible fitting structure into a dynamic system that absorbs movement forces. The resilient portion bends and returns, allowing the device to adapt to consistent movement and collision without deformation or detachment, resolving the contradiction between initial locking strength and long-term stability.
2Reliability
If the slide rail locking device is mounted to the supporting bar in a forcible fitting manner, then attachment is secure, but much force is required during installation and the device may not couple properly if insufficient force is applied
Solution Approach 1:
The resilient portion provides elastic deformation capability that reduces installation force requirements. During installation, the resilient portion bends to accommodate the fitting process and then returns to its original shape, securing the attachment without requiring excessive force, thus resolving the contradiction between attachment security and installation ease.
Solution Approach 2:
The resilient portion acts as a pre-designed cushioning element that absorbs installation forces. This beforehand cushioning allows the device to be attached with minimal force while ensuring secure coupling, eliminating the need for forcible fitting and making installation easier while maintaining attachment reliability.
3Reliability
If the slide rail locking device is mounted at the normal position with forcible fitting, then the device is fixed and coupled to the supporting bar, but the device is deformed or damaged due to applied force
Solution Approach 1:
The resilient portion transforms the static rigid structure into a dynamic system that can absorb installation and operational forces through elastic deformation. This allows the device to be properly coupled to the supporting bar while preventing deformation or damage by dissipating applied forces, resolving the contradiction between coupling reliability and device integrity.
4Reliability
If additional supporting bars are installed to prevent deformation and detachment, then device stability is improved, but manufacturing and installation costs increase
Solution Approach 1:
The resilient portion provides the necessary stability and shock absorption within the locking device itself, eliminating the need for additional supporting bars. This dynamic element maintains device stability while reducing structural complexity, resolving the contradiction between reliability and device complexity.
Solution Approach 2:
The stability function is extracted from the supporting bar structure and transferred to the resilient portion of the locking device. This extraction eliminates the need for additional supporting bars while maintaining device stability, reducing manufacturing and installation costs while preserving reliability.
Data Source
AI summary
A slide rail locking device includes an upper locking plate coupling a supporting bar mounted on an inside wall of a main body and a slide rail fixed to a side or bottom surface of a drawer, located above the supporting bar, and locked into the slide rail, a lower locking plate located below the supporting bar, a connection plate connecting the upper locking plate and the lower locking plate, and an extended plate formed by being bulged down from the lower locking plate to face the upper locking plate. A gap is formed between the slide rail locking device and a vertical supporting bar, whereby undesired movement of the slide rail locking device generated by a drawing motion of the drawer being drawn out of and retracted into the main body may be offset.