High-rigidity self-expanding light shield

A self-expanding, light-shielding technology, applied in the aerospace field, can solve the problems of low rigidity, low positioning accuracy, complex structure and system of the expandable light-shielding cover, etc. Effect

Active Publication Date: 2020-02-07
CHANGGUANG SATELLITE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the technical problems of the existing expandable sunshade with complex structure system, low positioning accuracy and low rigidity, the present invention provides a self-deployable sunshade with high rigidity

Method used

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  • High-rigidity self-expanding light shield
  • High-rigidity self-expanding light shield
  • High-rigidity self-expanding light shield

Examples

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Embodiment Construction

[0033] The technical solutions in the present invention will be described in detail below in conjunction with the accompanying drawings.

[0034] like Figure 1 to Figure 10 As shown, a high-rigidity self-expanding sunshade includes an upper mounting base 1, a driving spring 2, a shade cloth 3, a strip spring group, an unlocker 5, a rope hole 5-1 for the unlocker, a lower mounting base 6, Rope threading hole 7 of lower mounting seat, screw seat of upper mounting seat 8, locking rope 9, mounting hole of connection block 10, spring retracting groove 11, light hole 12, retaining ring 13, side wall of lower mounting seat 14, core block 16 , the connection block 17 and the rope hole 18 on the upper mounting seat.

[0035] The shapes of the upper mounting plate 1 and the lower mounting plate 6 are regular polygons. The upper mounting plate 1, the lower mounting plate 6 and the light-through hole 12 can be circular, triangular or polygonal, and designed according to actual usage re...

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PUM

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Abstract

The invention discloses a high-rigidity self-unfolding light shield, and belongs to the technical field of spaceflight. The light shield aims to solve the technical problems that a structural system is complex, positioning precision is not high, and rigidity is not high. Both an upper mounting seat and a lower mounting seat of the light shield are provided with light through holes; a plurality ofspring withdrawing grooves are respectively and uniformly formed in the circumferential direction; connecting block mounting holes are formed in the spring withdrawing grooves; a baffle ring is arranged between the spring withdrawing grooves and the light through holes; the upper mounting seat is connected with the lower mounting seat through a strip-shaped spring group; a driving spring and shading cloth are arranged between the upper mounting seat and the lower mounting seat; an unlocking device is fixedly installed on the side wall of the lower mounting seat through screws, the unlocking device breaks a locking rope, the driving spring drives the upper mounting seat and the lower mounting seat to be separated, the shading cloth is driven to be unfolded, and a strip-shaped spring is automatically unfolded from the folded bent state to the stretched state, thereby achieving the high-rigidity automatic unfolding of the light shield. The light shield has the advantages of high reliability, self-unfolding, self-locking, simple structure, light weight, high rigidity, high unfolding precision and large compression ratio.

Description

technical field [0001] The invention belongs to the field of aerospace technology, and in particular relates to a high-rigidity self-expanding sunshield. Background technique [0002] The hood is an important part of the satellite optical remote sensing system, which is mainly used to block the external stray light from entering the optical system to improve the imaging quality or detection performance. Conventional hoods are usually designed with a fixed size and made of metal or composite materials. In order to meet the requirements of the optical system, the hood is often large in size, resulting in wasted space and increased launch costs. For large-diameter hoods, the size is also Will be limited by the rocket fairing. The deployable hood that is folded during launch and unfolded after entering orbit is a key technology and an effective means to solve the space requirement of the hood. [0003] Existing expandable shades mainly include mechanism-expandable, inflatable-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D11/24G03B11/04
CPCG01D11/24G03B11/04
Inventor 张雷张道威谷松程浩侯燚红
Owner CHANGGUANG SATELLITE TECH CO LTD
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