Automatic lifting roller blind retarder

Abstract

The invention discloses an automatic lifting roller blind retarder comprising a retarder main body, an clutch mechanism and a transmission mechanism, wherein one end of the retarder main body is connected with the clutch mechanism; the other end of the clutch mechanism is connected with the transmission mechanism; the other end of the transmission mechanism is connected with a curtain roller and can rotate coaxially along with the curtain roller. When a curtain is rolled, the clutch mechanism ensures that the transmission mechanism is connected with the retarder main body, and thus, the braking force generated by the retarder main body is transmitted to the transmission mechanism and the curtain roller; and when the roller blind is unfolded, the clutch mechanism ensures that the transmission mechanism is disconnected with the retarder main body. The automatic lifting roller blind retarder is simple in structure, reliable in operation and low in manufacturing cost, generates the braking force when the curtain is rolled, further reduces the impact sound when the curtain is rolled, particularly when the rolling is about to end, and does not increase the drawing force when the curtain is unfolded, therefore, the service stability and service life of the curtain are improved.

Description

technical field [0001] The present invention relates to an automatic rising curtain device for dust-proof, light-shielding, heat-insulating and insect-proofing, etc., especially to a curtain device in which the rotating loading force generated by the torsion of a helical spring mounted on a winding shaft is used as the driving force for winding the curtain , It is equipped with an automatic rising roller blind device that can slow down the impact and knocking sound generated when the coil spring rolls up the curtain. Background technique [0002] Curtains are essential supplies for home life and office space. Curtains can be used not only for shading, sound insulation and dust prevention, but also for decoration and beautification of the home environment. They are widely used in homes, schools and offices. Since the current general-purpose automatic lifting curtain device is to use the rotary loading force of the helical spring to roll up the curtain, because, when the curta...

AI Technical Summary

Problems solved by technology

Since the current general-purpose automatic lifting curtain device is to use the rotary loading force of the helical spring to roll up the curtain, because, when the curtain is rolled up, especially when the rollup is about to end, it often causes a relatively large impact sound and is easy to damage the curtain. Therefore, it is necessary to provide a device with simple structure, reliable operation and low manufacturing cost, so that the curtain will generate braking force when it is rolled up, thereby reducing the special The thumping sound at the end of the windup

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