Profile Bar Node Connection with Rotatable Contour Units
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Solution Overview
Problem
Existing node connection devices for profile bars in three-dimensional support structures lack variability and precision, leading to potential incorrect angle connections during assembly, making it difficult to achieve the desired spatial structure and requiring highly skilled personnel.
Innovation Solution
A node connection device with form-fitting connection units that can be variably rotated relative to the profile bars, featuring stepped recesses and mirror-inverted designs to ensure precise alignment and connection at specific angles, allowing for the creation of complex three-dimensional structures with adjustable geometry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If node connection devices allow profile bars to be connected at any desired angle, then adaptability is improved, but assembly precision deteriorates due to potential incorrect angle connections
Solution Approach 1:
The connection device is segmented into multiple discrete connection elements with predetermined angles. Instead of allowing continuous angle adjustment, the system divides the angular space into specific discrete positions (e.g., 0°, 45°, 90°, 135°), forcing connections to occur only at these precise predetermined angles, thereby eliminating assembly errors while maintaining adaptability across multiple standard configurations.
Solution Approach 2:
The connection elements are pre-configured with specific angular orientations before assembly. The connection device includes pre-formed connection surfaces and positioning features that are manufactured in advance at exact angles, so that during assembly, workers simply need to mate the pre-prepared elements rather than measuring and adjusting angles in the field, ensuring precise angular relationships are achieved without requiring highly skilled personnel.
2Adaptability or versatility
If node connection devices use complex mechanisms for variable angular connections, then adaptability is improved, but device complexity increases
Solution Approach 1:
The connection device incorporates rotatable connection elements that can be dynamically adjusted to different angular positions. Connection bars or arms are designed to rotate about fixed axes, allowing the structure to adapt to various geometric configurations. This dynamic capability enables the same connection device to accommodate multiple angular relationships without requiring multiple specialized components, thereby achieving geometric versatility through simple rotational movement rather than complex mechanisms.
3Manufacturing precision
If connection units are designed for precise angular alignment, then assembly precision is improved, but ease of operation deteriorates due to alignment difficulty
Solution Approach 1:
The connection device employs visual indicators such as colored markings, painted surfaces, or color-coded connection elements to indicate the correct angular orientation and alignment position. Different angles or connection states are highlighted with distinct colors, allowing workers to quickly identify the proper alignment without requiring complex measurement tools or extensive training, thereby maintaining precise angular connections while significantly improving ease of operation.
Data Source
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AI summary
A node connection device (10.1, 10.2) for connecting a first profile bar (20) with a longitudinal direction (L1) to a second profile bar (30) with a longitudinal direction (L2) to a first connection unit (22.1), a second connection unit (32.1), wherein the longitudinal direction (L1) of the first connection unit (22.1) and the longitudinal direction (L2) of the second connection unit (32.1) are arranged in a predetermined plane rotation angle (a1) to each other, characterized in that the first connection unit (22.1) is a first connection contour unit and the second connection unit (32.1) is a first connection contour unit.1) have a second connection contour unit designed in such a way that the first and second connection contour units can be joined together in a form-fitting manner, so that the specified plane rotation angle (a1) is formed between the longitudinal axes (L1, L2) and connecting means are provided that fix the connection contour units or connection units that are joined together in a form-fitting manner in their relative position to each other and the connection units are designed in such a way that they can be variably fixed with respect to their respective rotation position by a specified rotation angle (b1, c1, b2, c2) with respect to the respective longitudinal axis (L1, L2) relative to the first and/or second profile bar (20, 30) according to a specified rotation angle (b1, b2, c1, c2), so that the connection plane is inclined relative to a reference plane by the rotation angle.