Height-Adjustable Desk Frame Assembly Using Insertion-Fit Locking
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Solution Overview
Problem
Conventional electric height-adjustable desks require additional parts and manufacturing equipment for locking mechanisms, increasing assembly complexity and costs.
Innovation Solution
An electric height-adjustable desk design featuring a frame with a main beam and auxiliary beam, where the auxiliary beam exerts force to maintain an insertion-fit state between male and female parts, allowing for quick assembly/disassembly without additional locking structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a locking part is added to maintain secure fit between legs and frame, then reliability is improved, but device complexity increases
Solution Approach 1:
The auxiliary beam is integrated with the frame structure, combining the functions of structural support and locking mechanism into a single component. The auxiliary beam works together with the male and female parts to maintain secure fit, eliminating the need for separate locking parts while preserving reliability.
Solution Approach 2:
The male part on the electric column and female part on the main beam automatically engage through insertion-fit, creating a self-locking mechanism. The auxiliary beam maintains this fit through its structural configuration, allowing the system to secure itself without additional locking components.
2Reliability
If a locking part is added to maintain secure fit, then reliability is improved, but manufacturing cost increases
Solution Approach 1:
The locking function is merged into the auxiliary beam and the insertion-fit mechanism between male and female parts. This integration eliminates the need for separate locking parts, reducing the number of components that require manufacturing, inventory management, and assembly, thereby lowering overall manufacturing costs.
Solution Approach 2:
The locking function is extracted from a separate component and integrated into the existing structural elements (auxiliary beam, male part, female part). This eliminates the need for additional production lines and auxiliary manufacturing equipment such as molds that would be required for separate locking parts.
3Strength
If fasteners are used to assemble desk frame and desktop, then strength is improved, but ease of operation worsens
Solution Approach 1:
The connection system is segmented into modular components: male parts on electric columns, female parts on the main beam, and an auxiliary beam for additional support. This segmentation allows for tool-free insertion-fit assembly while maintaining structural strength through the distributed connection points and auxiliary support.
Solution Approach 2:
The insertion-fit mechanism between male and female parts allows users to assemble and disassemble the desk frame and desktop without requiring tools or complex fastening operations. The auxiliary beam maintains the secure fit automatically, providing strength equivalent to fastened connections while preserving 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
Enables cost-effective assembly/disassembly with enhanced stability and reduced manufacturing costs by eliminating the need for extra locking parts and production lines, while maintaining structural integrity and electrical connectivity.
Implementation Method 1
the auxiliary beam exerts a force against the male part and/or the female part in a direction perpendicular to a direction of insertion fit between the male part and the female part to create fricative damping at an overlap portion therebetween
Data Source
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AI summary
An electric height-adjustable desk, which relates to a desk technology and can realize quick assembly/disassembly of the electric height-adjustable desk at a lower cost; the electric height-adjustable desk as disclosed includes: a desktop, a desk frame including a frame and two electric columns, the frame including a main beam and an auxiliary beam, the two electric columns being connected to two ends of the main beam, respectively, the auxiliary beam being connected between the main beam and the desktop; a male part is provided on each electric column, and a female part insertion-fitted with the male part is provided on the main beam, the male part being insertion-fitted with the female part to connect the electric column to the main beam; and the auxiliary beam is movable relative to the main beam, the auxiliary beam being configured to lock the male part and/or the female part to an insertion-fit state.