Radial telescopic net support with fixed support

Abstract

The invention discloses a radial telescopic net support with a fixed support. The radial telescopic net support comprises a Hoberman radial telescopic net support, wherein an annular connecting rod mechanism is arranged outside the Hoberman radial telescopic net support, and comprises straight bars which are connected end to end and of which the quantity is the same as that of external joints of the Hoberman radial telescopic net support; the two ends of the straight bars are fixedly connected with the support; a side bar is hinged on a connecting point between every two adjacent straight bars; the other ends of the side bars are hinged on the external joints of the Hoberman radial telescopic net support; a connecting rod is hinged on the external joints of the Hoberman radial telescopic net support; the other end of the connecting rod is hinged with a tail bar; and the other end of the tail bar is hinged at a half position of each straight bar. The radial telescopic net support is telescopic, and is connected to a support through the annular connecting rod mechanism, so that supporting conditions are simplified; and moreover, the radial telescopic net support has a reasonable structure, is easy to design and construct, and is particularly suitable for medium and small-span buildings.

Description

technical field [0001] The invention relates to a network frame structure, in particular to a radially telescopic network frame with a fixed support. 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. 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 [2] . 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 rem...

AI Technical Summary

Problems solved by technology

[0003] However, all the nodes of this radially stretchable network frame based on Hoberman scissor elements will have a large radial displacement during the movement of the system

When the radial telescopic network frame is used as a retractable roof structure, generally the retractable roof is supported on a fixed structure, and the radial displacement of these nodes brings great challenges to the design of the lower support system of the roof structure. difficulty

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