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A foldable membrane rod structure

A technology of folding film and rod structure, which is applied to cardboard items, electrical components, photovoltaic modules, etc., can solve the problems of saddle-shaped origami that cannot be fully folded, cannot be unfolded and folded, and the folding process is difficult to master. Large, avoid excessive collision, convenient transportation

Active Publication Date: 2021-10-29
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the triple symmetrical Bricard mechanism is fully unfolded, it forms an equilateral triangular plane. When fully folded, the rods overlap into a straight line in space. However, in the actual assembly process, the physical rods have volume and cannot be fully unfolded and folded.
[0004] At present, there are many researches on the application of the triple Bricard mechanism in aviation, robotics and other fields, but it has the disadvantage that it is prone to collision damage during the folding process when the force is too strong
Saddle-shaped origami has the disadvantages that it cannot be completely folded, the folding process is difficult to master, and the origami is easily damaged.

Method used

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  • A foldable membrane rod structure
  • A foldable membrane rod structure
  • A foldable membrane rod structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041]1. Component connection relationship.

[0042] The foldable membrane rod structure of the present invention, as shown in Figure 1, the structure includes four hinge nodes, four rectangular section rods and a rectangular foldable membrane, the four hinge nodes 25, 26, 28 and 27 They are respectively located at the four vertices of a two-dimensional square geometry in counterclockwise order; the four rectangular cross-section rods are respectively 24, 21, 22 and 23, and the rectangular cross-section rods 24 and 21 are connected by hinge nodes 26, and the rectangular Section bars 21 and 22 are connected by hinge node 28, rectangular section bars 22 and 23 are connected by hinge node 27, rectangular section bars 23 and 24 are connected by hinge node 25, and rectangular section bars 24, 21, 22 and 23 are connected by The hinge nodes are sequentially connected counterclockwise to form a square closed frame, and the rectangular folded membrane 20 is connected to the inner surfa...

Embodiment 2

[0053] 1. Component connection relationship.

[0054] As shown in Figures 5 and 6, the foldable membrane rod structure based on the triple symmetrical Bricard mechanism of the present invention includes six hinge nodes, six fixed connections, a saddle-shaped origami membrane and six rods. In Fig. 5, the thick lines represent the rods. There are six rods in total, including rods 1, 2, 3, 4, 5, and 6. The rods are all of the same kind, and the six rods are connected end to end in a symmetrical arrangement to form a regular hexagon. Shaped outer frame, each bar and its adjacent bars are connected by hinges at common nodes; six hinge nodes 7, 8, 9, 10, 11, and 12 are arranged at intervals on the inner and outer surfaces of the corner sides of the regular hexagonal frame , where nodes 7, 9, and 11 are arranged on the inner surface of the corners of the hexagonal frame, nodes 8, 10, and 12 are arranged on the outer surface of the corners of the hexagonal frame; the hinge rotation ax...

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Abstract

The invention discloses a foldable membrane pole structure, including a quadrangular frame and a technical proposal of a saddle-shaped origami film, and a technical proposal of a hexagonal frame and a saddle-shaped origami film; the quadrangular frame consists of four rods and four hinge nodes connecting four rods, the four hinge nodes include two inner hinge nodes and two outer hinge nodes, the inner hinge nodes and the outer hinge nodes are arranged alternately; the saddle-shaped origami film has four outer edges A rectangular foldable membrane, the four outer edges are respectively fixed on four rods. During the unfolding process, the two ends of the same rod move in opposite directions, and the two nodes on the same diagonal of the closed frame move towards the intersection point of the rotation axes of the two nodes on the other diagonal when the closed frame is fully unfolded. direction of movement. The structural unit has one degree of freedom, can be folded into a compact bundle, and has good application prospects in folding / expandable membrane rod structural systems and solar panels.

Description

technical field [0001] The invention is a method applied to the design of solar foldable battery panels, building structures and modern space structures, and in particular relates to a foldable membrane rod structure. Background technique [0002] Combining the common plane symmetric form and the trihedral Bricard mechanism, a triple symmetric Bricard mechanism can be obtained. When the triple symmetrical Bricard mechanism is fully unfolded, it forms an equilateral triangular plane. When fully folded, the rods overlap into a straight line in space. However, in the actual assembly process, the physical rods have volume and cannot be fully unfolded and folded. . The triple symmetric Bricard mechanism is selected as the research object. In any state of the mechanism, the axes of the six revolving pairs form two intersection points. These two points can be taken as the node positions after mutation, that is, the fully folded state. At the same time, the six revolving pairs The...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B31D5/04H02S30/20
CPCB31D5/04H02S30/20Y02E10/50
Inventor 陈耀李佳强范维莹冯健严嘉怡
Owner SOUTHEAST UNIV
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