Arrow-loaded foldable extension rod unfolding mechanism

Abstract

The invention relates to an arrow-loaded foldable extension rod unfolding mechanism which comprises a base, a plurality of sections of nested extension rod units and a pressing plate. The plurality of sections of extension rod units are N sections of extension rods, a first extension rod is connected with the base, and the Nth extension rod is the extension rod which is farthest away from the base when the arrow-loaded foldable extension rod unfolding mechanism is unfolded. The base comprises a lower base and an upper base arranged at one end of the lower base, the upper base is provided with two double-L structures which are split parallely arranged, the middle portion of the vertical part of the two double-L structures is correspondingly provided with a central hole for placing a horizontal rotating shaft, and the first extension rod is connected in the middle portion of the two double-L structures through the rotating shaft. The lower surface of the upper base is fixedly connected with a horizontally placed I-shaped moving base plate, left-and-right movement of the moving base plate is limited by a left boss and a right boss of the lower base, and front-and-back movement of the moving base plate is limited by a front boss and a back boss of the lower base.

Description

technical field [0001] The invention relates to a folding type extension rod expansion mechanism for space scientific detection of sounding rockets, in particular to an arrow-borne folding type extension rod expansion mechanism. Background technique [0002] Sounding rockets mainly use the detection equipment carried on the rocket to detect parameters such as atmospheric trace components, space electric field, ionospheric electrons, ion density, and electron temperature. Among them, the detection equipment for electrons, ions, and electric fields requires its probes to extend The aerodynamic outer surface of the rocket has a certain distance to avoid the influence of the residual magnetism of the rocket body and the surface layer of the air flow, and it is required to extend these probes with an extension rod expansion mechanism. These extension rod parts are often installed in the rocket fairing or on the joint surface where the rocket body and the engine are separated. Bec...

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Problems solved by technology

[0004] Foreign countries such as the United States, Russia, Sweden and other countries have successfully used the extension rod expansion mechanism to detect the electric field on sounding rockets. There are domestic precedents for detection by rocket centrifugal force deployment, but there is no such thing as a non-rotating sounding rocket. Extension rod deployment mechanism used

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