Collapsible Power-Driven Table Stand With Precise Screw Lift
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Solution Overview
Problem
Existing power-driven table stands face issues with complex assembly, heavy weight, large size, and inconsistent height adjustments due to manual operation of pneumatic or power-driven cylinders, leading to poor user experience and inefficient adjustments.
Innovation Solution
A collapsible power-driven table stand design featuring a supporting body with pivotally attached extendable stands driven by motors and screws, allowing for compact storage and easy assembly, with concealed components for a sleek appearance and reduced material usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If pneumatic cylinders are used for table height adjustment, then assembly is simplified, but height adjustment precision deteriorates due to high-speed lifting and manual lowering requiring numerous attempts
Solution Approach 1:
The patent replaces the pneumatic cylinder mechanical system with a power-driven screw mechanism. The screw thread converts rotational motion into precise linear motion, enabling accurate height control while maintaining automated operation. This substitution resolves the contradiction by providing both ease of manufacture (simplified assembly) and manufacturing precision (accurate height adjustment).
Solution Approach 2:
The power-driven screw mechanism automatically controls both lifting and lowering operations through motorized rotation, eliminating the need for manual intervention on the lowering side. The system self-regulates the descent speed and positioning, preventing the height inconsistency caused by manual operation while maintaining automated functionality.
2Manufacturing precision
If power-driven cylinders are used for height adjustment, then height adjustment precision is improved, but device complexity increases with complicated structure and tedious assembly
Solution Approach 1:
The patent segments the power-driven system into modular components: a motor unit, a screw mechanism, and extendable rod sections. Each component performs a specific function and can be independently manufactured and assembled. This segmentation reduces overall device complexity while maintaining precise height control capability.
Solution Approach 2:
The patent employs an extendable rod structure with multiple telescopic sections that can dynamically adjust their length. This dynamic design allows the stand to achieve precise height control when extended while maintaining a compact form when retracted, reducing structural complexity compared to a fully rigid power-driven cylinder system.
3Adaptability or versatility
If extendable stands are used for table height adjustment, then adaptability is improved for different body heights, but volume increases leading to larger size and higher transportation costs
Solution Approach 1:
The patent implements a telescopic extendable rod structure where smaller rod sections are nested within larger ones, similar to nested dolls. When the stand is retracted, the rods collapse into each other, minimizing the overall volume. When extended, they provide the necessary length for height adjustment, thus resolving the contradiction between adaptability and compact storage.
Solution Approach 2:
The extendable stand uses a dynamic telescopic mechanism that allows the structure to change its dimensions on demand. The stand transitions between a compact state for transportation and storage, and an extended state for use, providing adaptability to different body heights without permanently occupying large space.
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
The design simplifies assembly, reduces overall size, lowers transportation costs, and enhances user convenience by enabling quick extension and collapse, while maintaining a compact and aesthetically pleasing structure.
Implementation Method 1
a first driving member and a plurality of first extendable rod driven by the first driving member to move axially relative to each other
Data Source
AI summary
A collapsible power-driven table stand includes a supporting body of an elongated shape, a first stand having a first driving member and a plurality of first extendable rods driven by the first driving member to move axially relative to each other and a second stand having a second driving member and a plurality of second extendable rods driven by the second driving member to move axially relative to each other. The first driving member is pivotally attached to one end of the supporting body and the second driving member is also pivotally attached to another end of the supporting body in order to allow both the first and second stands to extend/collapse relative to the supporting body. Accordingly, the assembly of the collapsible power-driven table is simplified and the overall size thereof is reduced.