Shelf with retraction function

The utility model provides a sunshade with a retraction function. The sunshade comprises a fixed support, a folding support and a winding assembly. The folding supports are installed on the fixing supports respectively and can stretch out and draw back in the first direction relative to the fixing supports. The winding assembly comprises an automatic winder, shed cloth and an elastic piece, the automatic winder is fixedly installed on the fixing support, the elastic piece is fixedly installed on the folding support, one end of the shed cloth is connected to the automatic winder, the other end of the shed cloth is limited to the elastic piece, and the elastic piece can relieve limiting of the shed cloth under preset tension. According to the awning with the retraction function, when wind power roughly acts on the awning cloth in the second direction, the awning cloth can generate distance change in the first direction, and tension can be applied to the elastic pieces. When the pulling force reaches a threshold