A radial opening and closing reticulated shell

Abstract

The invention discloses a radial folding latticed shell comprising a Hoberman radial telescoping lattice shell; the inner ring of the Hoberman radial telescoping lattice shell comprises a plurality of inner ring nodes; a telescopic rod is connected between two adjacent inner ring nodes, wherein the telescopic direction of which extends along the connecting line direction of two said nodes; the inner ring node comprises a pin shaft, a sheath steel structure lever, an inner sleeve steel structure lever, an inner sleeve pipe, a sheath pipe, a polytetrafluoroethylene annular pad, an upper nut, a lower nut, a polytetrafluoroethylene ring, a cushion cylinder, and two connectors. The radial folding latticed shell is simple in structure, convenient in usage, high in structure intensity rigidity, can effectively solve the problems that the Hoberman radial telescoping lattice shell cannot form the complete latticed shell effect, and can be applied in large and medium-sized structures.

Description

technical field [0001] The invention relates to a radial opening and closing lattice shell. Background technique [0002] In the past few decades, scholars from various countries have proposed many concepts of long-span retractable roof structure systems, some of which have been applied in the retractable roofs of large sports venues such as tennis courts, swimming venues, and track and field venues. [0003] American engineer Hoberman (Hoberman) has been working on the research and design of the opening and closing structure since the late 1980s, mainly focusing on the application of the opening and closing structure. In his patent, Hoberman proposes a radially telescopic grid consisting of Hoberman units. The Hoberman unit is composed of two equal bent corner beam units connected in the middle by a scissor hinge. When the two corner beam units rotate around the middle scissor hinge, the angle between the beam ends remains unchanged. Using this property, multiple folded-b...

AI Technical Summary

Problems solved by technology

However, due to the geometric configuration of the Hoberman radially stretchable reticulated shell itself, there is inevitably a hole that cannot be completely eliminated. At the beginning and end of its movement process, the structure is always a structure similar to a cantilever structure, and cannot Form a complete reticulated shell structure, which is unfavorable to the stress and economic performance of the structure

Images