Rolling screen without pull rope

Abstract

The invention relates to a rolling blind without a guy rope, which at least comprises an upper track, a lower track, a rolling blind set, a fixed base and an automatic rolling device, wherein one side of the upper track is connected with the fixed base and the automatic rolling device on the other side of the fixed base, and the fixed base is in inlaid connection with one side of a shaft rod of the rolling blind set to form rotation. The automatic rolling device is pivoted with an external sleeve with a cam shaft on the other side from the internal part of a second sleeve lid set, an elastic element is rolled in the external sleeve, and the cam shaft on the other side of the external sleeve is in inlaid connection with the other side of a shaft rod of the rolling blind set, thus, by the rotation of the automatic rolling device, the rolling blind without a guy rope can be rolled and uncoiled to be more convenient for the user to roll and uncoil the rolling blind.

Description

technical field [0001] The invention relates to a cordless roller blind, in particular to an automatic retracting device connected to a fixed seat, the automatic retracting device is used to control the retracting and unfolding operations of the cordless roller blind, and to provide users with convenient rolling. retract or unfold its leaves. Background technique [0002] Nowadays, there are several styles of curtain structures on the market, such as: venetian blinds, pleated curtains, Roman curtains, etc., which are mainly installed on the doors and windows of homes to shield sunlight and decorate According to the needs of different consumers, general curtains can be divided into those that must use the pull cord to rise or fall to control its rolling and unfolding actions. For the single-width sheet-type curtain 10, the curtain retraction buffer device 11 is mostly used. The curtain retracting buffer device 11 is mainly composed of an outer casing, a sleeve, an outer cas...

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to overcome the defects existing in the existing curtains and provide a new type of cordless roller blind. Or positioning problems and safety considerations when stretching to a predetermined height, using the rotation of the automatic retracting device, and synchronously controlling the retracting and unfolding operations of the cordless roller blinds, providing users with convenience in retracting or unfolding their roller blinds, making it more practical

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