An external sunshade planar roller blind system that is stretched by traction

Abstract

The invention relates to an external shading flat rolling curtain system expanded by traction. The system includes a rolling curtain and a driving device. One end of the driving device is arranged inside a right supporting seat, the other end of the driving device is inserted into an octagonal tube, and the other end of the octagonal tube is supported on a left supporting seat. The left and rightsupporting seats are correspondingly arranged at the upper ends of left and right guide rail assemblies. The left and right guide rail assemblies are correspondingly installed above window frames on the left and right sides of a building. The rolling curtain is rolled on the octagonal tube in a downward-extending mode, both sides of the rolling curtain are slid along the left and right guide railassemblies. A rope wheel is arranged on the left supporting seat. A torsion spring and a pulling rope are arranged on the rope wheel, the upper end of the pulling rope is fixed on the rope wheel and the lower end of the pulling rope is connected with the lower end of the rolling curtain after bypassing corner parts which are fixed on the bottom of the window frames. The rope wheel is winded by thepulling rope which can be retracted and released as the rope wheel rotates. Through the interaction of the driving device, the roller curtain, the rope wheel and the torsion spring, the horizontal and inclined external sunshade curtain be drawn and the tensioning state is maintained to ensure the smooth and comfortable operation of the rolling curtain.

Description

technical field [0001] The invention relates to a building sun-shading curtain, in particular to a building exterior sun-shading curtain, in particular to an exterior sun-shading planar roller blind system which is drawn and unfolded. Background technique [0002] At present, vertical roller blinds for external sunshade have been widely used on vertical external windows of buildings. During the lifting, the vertical roller blinds are tensioned by gravity to maintain the sunshade function and verticality of the roller blinds, and the friction between the curtains and the guide rails is very small; however, the sun rooms of buildings are all horizontal or inclined to the glass roof, and the slope of the inclined roof The skylight is also a slanted skylight. For example, when a traditional external sunshade roller blind is installed outside the window, the smaller the angle between the roller blind and the horizontal plane, the greater the friction between the roller blind and ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to address the deficiencies of the prior art, to provide a traction-launched outer sunshade planar roller blind system, which can effectively solve the problems of driving, traction, sagging, friction damage, etc. of outer sunshade roller blinds running horizontally and obliquely , so that the horizontal and oblique outer sunshade roller blinds run smoothly and freely

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