Single-degree-of-freedom holosymmetric deployable structure

Abstract

The invention discloses a single-degree-of-freedom full-symmetric deployable structure which is formed by connecting a spring driving hinge and a single-degree-of-freedom full-symmetric deployable structure, the spring driving hinge is mounted at a connecting joint of the single-degree-of-freedom full-symmetric deployable structure, and a deployable array is elastically driven by a spring to unfold. The full-symmetric deployable array is designed on the basis of the rigid thick plate paper-cut theory, so that the deployable array has a larger folding-unfolding ratio and can be infinitely expanded to obtain a larger working area, the deployable array can be folded into a smaller volume in a non-working stage so as to be convenient to transport, and the deployable array is unfolded to an expected working position in a working stage so as to be convenient to transport. And the deployable array has a single degree of freedom, automatic unfolding of the deployable array can be realized through the elastic force of the springs, and self-locking after unfolding can be realized through interference between joints of the plate surface, so that the folding reliability is improved.

Description

technical field [0001] The invention relates to the technical field of deployable structures, in particular to a fully symmetrical deployable structure with a single degree of freedom. Background technique [0002] The deployable structure is a new type of structure with various configuration changes, which can be gradually expanded from the folded state to the fully deployed state under the drive of external force, and then locked into a stable working state. In the fully collapsed and deployed state, the deployable structure is a stable "structure" that can be viewed as a "mechanism" with degrees of freedom of movement during deployment. [0003] There are many common concepts of deployable structures in life, such as umbrellas, folding fans, mobile tents, and elevating aerial work platforms. In order to realize the expandable function, most deployable structures are composed of more components and connecting joints, which makes the system more complex. However, compared...

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Problems solved by technology

[0007] The purpose of the present invention is to solve the problems of the existing deployable structures such as small folding-expanding ratio, incapability of self-expanding and limited working area, and to provide a fully symmetrical deployable structure with a single degree of freedom. Simple and easy to implement, the reliability of the unfolding process has been significantly improved. The thick plate paper-cut design method has been used to remove some redundant joints, avoiding jamming during the movement process and improving the stability of the unfolding process.

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