Abstract: A winding assembly and a retractable curtain, which may adjust the tensile force of a cord. The winding assembly of the retractable curtain comprises a fixing seat and a winding shaft rotatably disposed on the fixing seat, wherein a threading hole and guiding holes are opened in the fixing seat for the cord to pass through successively; there is a plurality of guiding holes opened in different positions of the fixing seat, and the threading hole is located between the outer wall of the winding shaft and the plurality of guiding holes. The outer wall of the winding shaft tilts outward gradually along the axis thereof, and the threading hole is opened on a part of the fixing seat corresponding to one end of the winding shaft with a larger outer diameter.

Abstract: A retracting means comprises a synchronizing wheel group and transmission assemblies, the transmission assembly at each side being connected with a winding assembly; each transmission assembly comprises a first bevel gear and a second bevel gear which are engaged with each other, and the first bevel gear is connected with at least one synchronizing wheel; each winding assembly comprises a fixing seat, a winding shaft and a transmission shaft, the transmission shaft is connected with a corresponding second bevel gear, the winding shaft passes though and is coaxial with the transmission shaft, the outer wall of the winding shaft tilts outward gradually along the axis of the transmission shaft.

Abstract: The present disclosure provides an adjusting device for a curtain cord and a retractable curtain. The adjusting device for a curtain cord comprises a mounting base for fixedly connecting to the lower end of the curtain body, the mounting base is provided with a first threading hole for the cord to pass through, the mounting base is provided with a mounting groove thereon, the first threading hole is provided on the groove wall of the mounting base, and the adjusting device further comprises a stopper for winding and fixing the cord, a winding hole is provided throughout in the middle of the stopper for the cord to pass through, the stopper is detachably jammed within the mounting groove, and a gap for accommodating the cord wound on the outer surface of the stopper is located between the groove wall of the mounting groove and the stopper.