Linked Rotating Joint for Lightweight Child Product Folding
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Solution Overview
Problem
Existing child products with rotating joints involving three or more rods have complex structures due to separate operation of rods, leading to cumbersome operations and intricate designs.
Innovation Solution
A rotating joint that includes a base, a first connecting base, and a second connecting base, and a second connecting base, with linkage units that allow coordinated rotation of rods, simplifying the structure and operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a rotating joint is connected to three or more rods that are rotatably connected to each other, then conversion between different states is possible, but the structural design becomes complicated and operation becomes cumbersome
Solution Approach 1:
The patent combines multiple rod operations into a single base rotation action. The linkage units merge the rotation actions of the base with the connecting bases, so that one rotational input (base rotation) produces coordinated rotation of multiple connecting bases simultaneously, reducing operational complexity while maintaining state conversion capability
Solution Approach 2:
The linkage units act as intermediary mechanisms between the base and the connecting bases. These linkage units transmit and coordinate the rotation motion, enabling the base to control multiple connecting bases through a mediating mechanism rather than direct separate connections, thus simplifying the overall structure
2Ease of operation
If rods are driven and rotated separately, then each rod can be controlled independently, but the operation becomes cumbersome and structure becomes complex
Solution Approach 1:
The patent merges separate rod rotation operations into a single coordinated action. By using linkage units that connect the base to multiple connecting bases, the system allows one base rotation to simultaneously drive multiple connecting bases in a coordinated manner, eliminating the need for separate rotation operations while maintaining control over each rod's position
3Ease of operation
If multiple linkage units are added to enable coordinated rotation, then linked mode rotation is achieved, but the device complexity increases
Solution Approach 1:
The linkage units are designed with multi-functionality, serving both as connection elements and as motion transmission mechanisms. Each linkage unit simultaneously provides structural support and enables the coordinated rotation function, reducing the need for additional separate components and thereby limiting the increase in device complexity
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 rotating joint simplifies the operation of child products by enabling linked rod rotation, reducing complexity and weight.
Implementation Method 1
the first pin is slidably and rotatably inserted in the first sliding groove... the second pin is slidably and rotatably inserted in the second sliding groove
Data Source
Figure 1~2
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Figure 5~6
AI summary
A rotating joint, comprising a base (16), a first connecting base (17) and a second connecting base (18). The first connecting base (17) and the second connecting base (18) are rotatably connected by a first rotating shaft (6). A second rotating shaft (7) is further provided between the first connecting base (17), the second connecting base (18) and the base (16). The first rotating shaft (6) and the second rotating shaft (7) are arranged in parallel. A first linkage unit is provided between the first connecting base (17) and the base (16). A second linkage unit is provided between the second connecting base (18) and the base (16). The first linkage unit coordinates with the first connecting base (17) to rotate relative to the second connecting base (18) when the base (16) rotates relative to the second connecting base (18), and the second linkage unit coordinates with the second connecting base (18) to rotate relative to the first connecting base (17) when the base (16) rotates relative to the first connecting base (17). The joint realizes rotation of the base (16) in different states, can make both the first and second connecting bases (17, 18) to rotate in a linked mode, thereby simplifying operation steps. Moreover, the rotating joint is simple in joint structure, and can simplify the structure of a child product using the same so that the child product becomes more lightweight as a whole. In addition, the present invention also relates to a child product using the rotating joint.