Desk Frame Connection Structure with Elastic Locking Wedge Plate
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Solution Overview
Problem
The installation of electric lifting desks is inefficient, time-consuming, and requires high manufacturing costs due to complex locking mechanisms with high accuracy requirements, and there are safety risks from improper installation or wear-induced looseness.
Innovation Solution
A quick-assembly desk frame connection structure with a locking assembly using trapezoidal protrusions and slot openings, combined with an elastic locking wedge plate, allows for tool-free, automatic locking and adaptive gap compensation, reducing installation complexity and enhancing stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If multiple screws are used to lock the frame and lifting columns, then the connection strength is improved, but the installation time and labor cost increase significantly
Solution Approach 1:
The patent combines multiple fastening functions into a single integrated clamp structure that simultaneously provides mechanical locking and tightening capabilities, replacing the need for multiple separate screws and reducing installation steps while maintaining connection strength
Solution Approach 2:
The clamp structure incorporates a self-tightening mechanism that automatically applies sufficient fastening force during installation without requiring additional tools or complex adjustment procedures, enabling quick installation while ensuring strong connections
2Productivity
If a latch mechanism with two sets of shaft diameters and retaining grooves is used, then the quick installation capability is improved, but the manufacturing cost increases due to high position accuracy requirements
Solution Approach 1:
The patent changes the geometric parameters of the connection interface from precise circular shafts and grooves to trapezoidal protrusions with slot openings, which are easier to manufacture with standard tolerances while still achieving quick and secure assembly through the wedge-shaped locking action
3Stability of the object's composition
If a crank wrench is added to press the lifting columns and frame tightly, then the connection stability is improved, but the device complexity and safety risk increase due to separate installation requirements
Solution Approach 1:
The patent merges the tightening function previously requiring a separate crank wrench into the integrated clamp structure itself, which inherently provides the necessary pressing force through its design, eliminating additional components and simplifying the installation process while maintaining connection stability
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
Facilitates fast, safe, and reliable installation with reduced manufacturing costs, while ensuring long-term stability and safety by eliminating the need for additional tools and adapting to wear-induced gaps.
Implementation Method 1
A locking assembly is provided on the front wall of the metal box. The locking assembly is a locking wedge plate connected to the front wall through a plurality of elastic members. The acting force of the elastic members is towards the opening of the metal box.
Data Source
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AI summary
The present disclosure relates to the technical field of lifting desks, in particular to a quick-assembly desk frame connection structure and an electric lifting desk. The quick-assembly desk frame connection structure includes a frame assembly and a plurality of lifting columns supporting the frame assembly. Each lifting column comprises a telescopic assembly and a metal box arranged at the end of the telescopic assembly. Either the side wall of the metal box or the inner wall of the cross beam assembly is provided with a plurality of trapezoidal protrusions, and the other is provided with slot openings adapted to the protrusions. A locking assembly is provided on the front wall of the metal box, which is a locking wedge plate connected to the front wall through a plurality of elastic members. The acting force of the elastic members is directed toward the opening of the metal box. Both sides of the first face wall of the locking wedge plate are provided with locking wings exceeding the side wall of the metal box, and the locking wings are embedded in the locking grooves of the cross beam assembly. In the present disclosure, when the lifting column is installed into the frame, the locking assembly automatically locks the lifting column and the frame, achieving quick installation.