An expandable truss structure locking device and its application method

Abstract

The invention discloses a deployable truss structure locking device and a use method thereof. The deployable truss structure locking device comprises deployable trusses, a locking device and steel wire ropes; the lower part of the locking device and the deployable trusses are secured together through two steel wire ropes so as to achieve the purpose of positioning the locking device; the upper part of the locking device and the steel wire ropes are assembled together through pulleys, and both ends of each steel wire rope are connected to the deployable trusses so that the locking device and the trusses are connected together. A small steel ball is fixed to the position secured by the steel wire ropes at the upper part of the locking device, and the steel wire ropes pass through driving plates and corresponding holes on a baffle; when the truss is unfolded to the designated position, the small steel ball passes through the baffle from the right baffle and reaches the hole on the right baffle so as to toggle the driving plate, so that the driving plate and the baffle are staggered for a certain angle to achieve the locking purpose. The deployable truss structure locking device disclosed by the invention is able to achieve the purpose of switching between the locking and folding states effectively and easily, convenient for machining and easy to assemble, and is simple.

Description

technical field [0001] The invention relates to a locking device for an expandable truss structure and a use method thereof, in particular to a structure that can be effectively locked when the truss is deployed to a specified state. Background technique [0002] Deployable truss structure is a new type of folding structure developed in recent years, which is widely used in aerospace, mechanical engineering and daily life. The concept of expandable structures has long been familiar to people, such as the opening and storage of umbrellas in daily life, the unfolding and folding of folding chairs, and the use of open and close structures in many large stadiums, etc. With the development of the aerospace industry, Expandable structures have received more and more attention from scientific and technological workers in various countries due to their remarkable characteristics of folding and unfolding and broad application fields, and have achieved great development. [0003] For...

AI Technical Summary

Problems solved by technology

At present, most of the locking devices used on deployable trusses are mainly designed to install elastic opening materials with different hole diameters at both ends on the locking device. When passing through the small hole, because the hole diameter of the entry end is large and the material is elastic, it can be squeezed through very well. However, when the locking ball wants to return to its original position, it cannot return because the hole diameter of the return end is small, so as to realize the locking function

However, although this kind of locking device can realize the locking function well, it cannot release the locked state, which makes it more difficult to recover the deployable truss or fold the deployable truss later.

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