Umbrella drawing-in by winding

An umbrella drawing-in by winding, comprising an umbrella fabric, a frame, a shaft and retracting assemblies, wherein the frame includes a notch, a runner and a rib support set, the rib support set has a first end portion and a second end portion, the first end portion is secured at a top end of the shaft via the notch, and the second end portion is slidably secured on the shaft via the runner, the umbrella fabric has folds and is secured on the frame, and the retracting assemblies are secured on one side of the folds, wherein the retracting assemblies are arc-shaped retracting assemblies and each of the retracting assemblies has a solid structure, and an outline of the retracting assemblies is conformal to an outline of the umbrella fabric,

• wherein the rib support set is foldable between a retracted state and an expanded state, when the rib support set is in the expanded state, each of the retracting assemblies is uncovered, and when the rib support set is in the retracted state, the retracting assemblies are stacked up with each other, and different layers of the umbrella fabric being arc-shaped and are stacked up with each other,
• wherein the umbrella fabric surrounds an axis and has a central point disposed on the axis, the folds include circular umbrella folds that surround the axis and take the central point as a center of circle,
• the umbrella is a triple-fold umbrella, a number of the circular umbrella folds is two, the retracting assemblies comprise a medium retracting piece, the medium retracting piece is set on the umbrella fabric between the two circular umbrella folds, and the medium retracting piece has an arc structure and the retracting assemblies are made of non-metal material.