Multi-Legged Stand Pre-Opening Mechanism for Easier Leg Splaying
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Solution Overview
Problem
Conventional multi-legged stands face difficulties in transitioning leg assemblies between folded and splayed states relative to the support rod assembly.
Innovation Solution
A multi-legged stand design featuring a support rod assembly, sliding sleeve assembly, support leg assemblies, connecting rods, and a preliminary opening member, where the leg assemblies are rotatably connected and actuated by the opening member to facilitate easy transition between folded and splayed states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the leg assemblies are designed to be manually splayed or folded relative to the support rod assembly, then the stand can be compact when folded, but the transition between folded and splayed states is difficult
Solution Approach 1:
The preliminary opening member is rotated in advance to a preliminary opening angle, which preliminarily opens the support leg assemblies and reduces the effort required for subsequent splaying. This preliminary action prepares the system to make the transition easier.
Solution Approach 2:
The preliminary opening member acts as an intermediary mechanism between the user's manual input and the support leg assemblies. By rotating this intermediate component, the user indirectly actuates the leg assemblies through the connecting rods, making the transition smoother and easier.
2Ease of operation
If the preliminary opening member is rotated to preliminarily open the support leg assemblies, then the splaying operation becomes easier, but the device structure becomes more complex
Solution Approach 1:
The preliminary opening member is integrated with the support rod assembly through sliding engagement. The connecting rods serve dual purposes by connecting both the preliminary opening member and the support leg assemblies, merging multiple functions into fewer components to reduce overall complexity.
Solution Approach 2:
The connecting rods perform multiple functions: they connect the preliminary opening member to the support leg assemblies, transmit rotational motion, and enable both the preliminary opening and full splaying operations. This multi-functionality reduces the need for separate dedicated components.
Data Source
AI summary
A multi-legged stand and an electronic terminal support device. The multi-legged stand includes: a support rod assembly, a sliding sleeve assembly, support leg assemblies, connecting rods, and a preliminary opening member. When the support leg assemblies are splayed relative to the support rod assembly, the support leg assemblies can stand on a support surface. When a first external action is applied to the preliminary opening member, the preliminary opening member rotates relative to the support rod assembly. The preliminary opening member includes actuating portions. During rotation of the preliminary opening member from an initial position to a second position, the actuating portions actuate the support leg assemblies to cause the support leg assemblies to be switched from a folded state relative to the support rod assembly to a preliminarily opened state relative to the support rod assembly, facilitating splaying of the support leg assemblies relative to the support rod assembly.