Regular tetrahedral symmetrical deployable mechanism unit

A technology of mechanism unit and regular tetrahedron, which is applied in the field of regular tetrahedral symmetric expandable mechanism unit, can solve the problems of new-type deployable structure design and engineering application difficulties, few types of mechanism units, etc., and achieve simple structure, beautiful appearance, Create handy effects

Inactive Publication Date: 2014-12-24
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still few types of mechanism units at this stage, which brings great difficulties to the design and engineering application of new deployable structures.

Method used

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  • Regular tetrahedral symmetrical deployable mechanism unit
  • Regular tetrahedral symmetrical deployable mechanism unit
  • Regular tetrahedral symmetrical deployable mechanism unit

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Embodiment Construction

[0017] Below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention will be further described:

[0018] figure 1 FIG. 2 and FIG. 2 are a structural schematic diagram and a schematic diagram of main components of a regular tetrahedral symmetrical expandable mechanism unit of the present invention, respectively.

[0019] The regular tetrahedral symmetrical expandable mechanism unit of the present invention includes 16 three-bar intersecting connection nodes 1 and 24 equal-length connecting rod units 2, and each three-bar intersecting connection node 1 is provided with three rotating pairs 3 , the three-bar intersection connection node 1 is connected to the three link units 2 through three rotating pairs 3 , and the two ends of each link unit 2 are respectively connected to different three-bar intersection connection nodes 1 through the rotating pairs 3 . As shown in Figure 2, in the expandable mechanism unit of the present inv...

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Abstract

The invention discloses a regular tetrahedral symmetrical deployable mechanism unit which comprises 16 three-rod intersected connecting nodes and 24 equilong connecting rod units, wherein each three-rod intersected connecting node is provided with three revolute pairs, and the three-rod intersected connecting node is respectively connected with three connecting rod units through the three revolute pairs, and the two ends of the each connecting rod unit are respectively connected with different three-rod intersected connecting nodes through the revolute pairs; and the axial leads of the three revolute pairs on each three-rod intersected connecting node are located in a same plane, and a triangle formed by the intersection of the axial leads of the three revolute pairs is an equilateral triangle, a connecting rod installing position of each revolute pair is arranged at the midpoint of an edge of the equilateral triangle, and a connecting rod unit is perpendicular to the axial lead of the revolute pair connected with the connecting rod unit. The deployable mechanism unit disclosed by the invention is just composed of connecting rods and revolute pairs, so that the deployable mechanism unit is simple in structure, beautiful in modelling, convenient to manufacture, and easy to be folded and unfolded.

Description

technical field [0001] The invention relates to a mechanism and a deployable structure, in particular to a regular tetrahedral symmetrical deployable mechanism unit. Background technique [0002] Deployable structures can be quickly unfolded from a compact folded state, which has attracted widespread attention from designers and engineers, and has gradually been applied in engineering. In recent years, researchers have proposed several types of deployable structural units, among which the scissor-hinge unit is a more common basic unit in deployable structures, and the Bennett unit and the derived Bricard unit belong to another type of classic closed ring mechanism. . The above types of basic units all have single-degree-of-freedom motion characteristics, and the multiple self-stress modes of the structure can provide additional structural stiffness, which has played an important role in the design of deployable structures. However, there are still few types of mechanism un...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/344
Inventor 陈耀冯健
Owner SOUTHEAST UNIV
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