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Foldable and unfoldable hexagonal prism frame structure

A frame structure and hexagonal prism technology, which is applied in the field of foldable frame structure, can solve the problems of incomplete folding, folding and unfolding ratio, small size, and few applications, and achieve the effect of simple structure, convenient installation and use, and small volume

Inactive Publication Date: 2016-11-09
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The existing space expandable structures mainly include hinge expandable structures, rod expandable structures, planar expandable structures and body expandable structures, among which the rod expandable structures are currently the most widely used for positioning a

Method used

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  • Foldable and unfoldable hexagonal prism frame structure
  • Foldable and unfoldable hexagonal prism frame structure
  • Foldable and unfoldable hexagonal prism frame structure

Examples

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Example Embodiment

[0026] In order to further understand the content, characteristics and effects of the present invention, the following embodiments are given as examples, and detailed descriptions are as follows with accompanying drawings:

[0027] Such as figure 1 As shown, this embodiment provides a foldable hexagonal prism frame structure, including six successively connected rod structures, namely the first rod structure 1, the second rod structure 2, and the third rod structure 3. , The fourth rod structure 4, the fifth rod structure 5 and the sixth rod structure 6. The rod structure is a ring structure composed of two long rods and four short rods connected to each other through six rotating pairs. The long rods are placed parallel to each other symmetrically and at the same height. The two connected by four short rods are divided into two groups. The connecting ends of each group of short rods are connected by a rotating pair. The separated ends of each group of short rods are connected to ...

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Abstract

The invention discloses a foldable and unfoldable hexagonal prism frame structure. The foldable and unfoldable hexagonal prism frame structure comprises six rod piece structures which are connected in sequence. The six rod piece structures include the first rod piece structure, the second rod piece structure, the third rod piece structure, the fourth rod piece structure, the fifth rod piece structure and the sixth rod piece structure. Each rod piece structure is a ring-like structure formed by connecting two long rods and four short rods through six revolute pairs. Every two adjacent rod piece structures share a common rod formed by long rods. Each common rod is a busbar of the hexagonal prism frame structure and is a rigid body of every two adjacent rod piece structures. The foldable and unfoldable hexagonal prism frame structure is a rigid over-constrained mechanism and has two stable states, that is, the folded state and the unfolded state. The foldable and unfoldable hexagonal prism frame structure is small in size and convenient to store or transport when folded and is large in work space when unfolded in a working state. The foldable and unfoldable hexagonal prism frame structure only has one degree of freedom by constraining redundant degrees of freedom, is simple in motion control, has the advantages of easy production and processing, convenient motion control, high reliability and the like, and has important significance and wide application prospects in the fields such as aerospace.

Description

technical field [0001] The invention relates to a foldable frame structure, in particular to a hexagonal prism frame structure with a large fold-to-expand ratio that can be folded and unfolded by a single drive. Background technique [0002] The polyhedron structure has the advantages of simple composition and good symmetry. It plays an important role in supporting, deforming, and beautifying in the fields of architecture, aerospace, art, and military. The typical representative is the "Water Cube" polyhedron based on bubble theory. Space steel frame structure. [0003] The frame structure has the advantages of light weight and good ductility. On this basis, the space expandable frame is gradually developing and mature. As far as the spaceborne expandable antenna is concerned, the frame structure pursues the lightest possible weight and the smallest possible folded volume, so that it can be loaded into the spacecraft and transported in a specific position. Opened as requir...

Claims

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Application Information

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IPC IPC(8): B25J9/00
CPCB25J9/0027
Inventor 陈焱徐润平康荣杰
Owner TIANJIN UNIV
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