Convenient guide rail interlocking mechanism
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Solution Overview
Problem
Existing drawer rail interlocking mechanisms face challenges such as inconvenient installation, high length accuracy requirements for interlocking components, reliability issues due to deformation under sudden force, and potential simultaneous opening of multiple drawers.
Innovation Solution
A convenient guide rail interlocking mechanism featuring a front-end interlocking assembly with a front lock fixing seat, front lock insertion block, front lock clamp block, and linkage rod, which ensures that only one drawer can be pulled out at a time by locking or unlocking the guide rail components effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the interlocking device is designed at the tail end of the rail, then the interlocking function is achieved, but the installation becomes inconvenient and the length accuracy requirement increases
Solution Approach 1:
The patent inverts the conventional design by moving the interlocking device from the tail end of the rail to the front end. The front lock fixing seat, front lock insertion block, and linkage rod are positioned at the front end of the outer rail and inner rail respectively, allowing the interlocking action to occur at the front rather than the back. This inversion simplifies installation by providing better access during assembly and reduces the critical length tolerance requirements for the connecting components.
2Reliability
If the interlocking mechanism uses a connecting rod, then the interlocking function is achieved, but the length accuracy requirement becomes too high
Solution Approach 1:
The patent replaces the rigid connecting rod with a dynamic linkage rod mechanism that includes a linkage rod, front lock insertion block, and front lock clamp block. The linkage rod can rotate and adjust its effective length through the interaction of these components, providing tolerance compensation. The front lock insertion block slides within the front lock fixing seat, allowing for automatic adjustment to accommodate variations in rail length and positioning tolerances.
3Ease of operation
If the interlock mechanism is subjected to sudden pulling force, then the drawer can be opened, but the interlock mechanism may fail due to deformation
Solution Approach 1:
The patent incorporates the front lock clamp block and linkage rod mechanism that provides gradual engagement and disengagement of the interlocking function. The linkage rod and front lock insertion block work together to distribute the pulling force gradually rather than applying it suddenly to a single point. This cushioning effect prevents sudden force from causing deformation or failure of the interlock mechanism while still allowing smooth drawer opening.
4Quantity of substance
If multiple drawers are installed without obvious interlocking function, then the cabinet capacity is increased, but multiple drawers may be opened simultaneously
Solution Approach 1:
The patent merges the interlocking functions of multiple drawers through the linkage rod mechanism. When one drawer is pulled, the linkage rod transmits the motion to prevent simultaneous opening of other drawers. The front lock insertion blocks of adjacent drawers are connected through the linkage rod system, creating a unified interlocking effect across multiple drawers while maintaining the ability to open one drawer at a time.
Data Source
AI summary
A convenient guide rail interlocking mechanism is provided, which includes an interlocking mechanism, the interlocking mechanism includes a front-end interlocking assembly, the front-end interlocking assembly includes a front lock fixing seat, a front lock insertion block, a front lock clamp block, and a linkage rod. The front lock fixing seat is provided at a front end of an outer rail, and provided with a guide recess. Two ends of the linkage rod are respectively provided with the front lock insertion block, which is respectively inserted into the corresponding outer rail. The front lock insertion block is slid downward on the guide recess under its own weight, and under a linkage action of the linkage rod, the front lock insertion block is driven to move downward and locked on the corresponding outer rail. The front lock clamp block is provided at a front end of an inner rail.