Radial dual-layer flexible grid structure

Abstract

The invention discloses a radial dual-layer flexible grid structure which comprises more than two loop chain-shaped shear mechanisms and more than two radial dual-layer chain-shaped shear mechanisms, wherein the loop chain-shaped shear mechanisms are concentrically distributed; the radial dual-layer chain-shaped shear mechanisms are distributed along the radial direction of the loop formed by the loop chain-shaped shear mechanism; each loop chain-shaped shear mechanism is formed by a plurality of loop symmetric scissor-like units which are connected end to end to form a loop; each radial dual-layer chain-shaped shear mechanism comprises upper and lower horizontal shear mechanisms which are aligned, and each shear mechanism layer is formed by a plurality of radial symmetric scissor-like units end to end to form a line; and upper and lower radial chain-shaped shear mechanism layers are respectively connected with the loop chain-shaped shear mechanisms through a second connecting rod end part of the radial symmetric scissor-like units and a first connecting rod end part of the loop symmetric scissor-like units. The grid structure can be expanded and contracted freely, has a high rate of expansion and contraction, has a reasonable structure and simple design and construction, and is especially suitable for buildings with medium and small spans.

Description

technical field [0001] The invention relates to a grid structure, in particular to a radially stretchable grid structure with a radial double-layer chain-shaped scissor mechanism and a circular chain-shaped scissor mechanism. Background technique [0002] Deployable structure is a new type of structure developed in the past half century, which plays an important role in the fields of aerospace, building structure and military engineering. The main feature of a deployable structure is that it has two stable configurations: a fully folded state and a fully unfolded working state. In the folded state, the structure is gathered in a certain shape, and under the action of external driving force, the structure is gradually unfolded, reaching the fully unfolded working state, and then locked into a stable state. [0003] The deployable scissor hinge structure is a space structure based on the scissor hinge unit, which can design a variety of geometric shapes. This structure becom...

AI Technical Summary

Problems solved by technology

[0004] At present, the deployable structure has the problems of small size span, large number of bars, complex joint structure, poor structural rigidity, and prominent stability problems, which are not conducive to design and construction.

Images