A rolling shutter self-opening system

Abstract

The invention relates to an automatic roller blind unfolding system. The automatic roller blind unfolding system comprises two mounting frames, two fixing frames, a rotating shaft and blind cloth, wherein a driving mechanism for driving the rotating shaft to rotate and a braking mechanism for braking the rotating shaft are mounted on the fixing frames; the driving mechanism comprises a driving motor mounted on the corresponding fixing frame and a transmission assembly mounted on an output shaft of the driving motor and used for driving the rotating shaft to rotate; the braking mechanism comprises a sleeve fixedly connected to one end of the corresponding fixing frame, a braking block connected to an inner cavity of the sleeve in the radial direction of the rotating shaft in a sliding manner as well as a first spring fixedly connected to the side, away from the rotating shaft, of the braking block; the end, away from the braking block, of the first spring is fixedly connected to the inner wall of the end, away from the rotating shaft, of the sleeve; and multiple first insertion slots are sequentially formed in the rotating shaft in the circumferential direction, the braking block isinserted in the corresponding first insertion slot, a first slope in a circular truncated cone is arranged on the inner circumferential surface of each first insertion slot, a second slope in a circular truncated cone is arranged on the side, close to the rotating shaft, of the braking block, and the first slopes and the second slope are matched.

Description

technical field [0001] The invention relates to the technical field of roller blinds, in particular to a self-opening system for roller blinds. Background technique [0002] Roller curtains, also known as roll-up curtains, are named after the traditional fabric curtains that can be opened and closed by rolling the whole curtain up and down. They are widely used in formal occasions such as offices, offices, banks, and schools. It is one of the most common office curtains. According to the different operation methods, it can be divided into bead type roller blinds and spring type roller blinds. [0003] For the prior art, reference may be made to the Chinese utility model patent whose authorized notification number is CN203302835U, which discloses a curtain, especially a rolling curtain, including a reel; a curtain is rolled on the reel; one end of the reel is provided with a chain; the two ends of the reel are rotatably arranged on the fixed seat; the rear side of the fixed...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: by manually driving the reel to rotate, it is inconvenient to retract and unwind the curtain

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