Venetian blind retracting mechanism

A venetian blind retracting mechanism, for retracting a venetian blind (6), and the venetian blind (6) comprising two or more vanes (61) and drawstrings (62);

• and both ends of the venetian blind (6) having the drawstrings (62) passing through all of the vanes (61) and coupled to the last vane (61) at the bottom of the venetian blind (6);
• characterized in that the venetian blind retracting mechanism comprises a spring box element (1) and a guiding element (2) separately disposed on both sides of the spring box element (1);
• the spring box element (1) comprises a casing (11), a winding wheel set pivotally coupled to the casing (11) and separately disposed at a spring seat (12) on both sides of the winding wheel set, and wound around a worm spring (15) installed on the spring seat (12);
• the winding wheel set comprises two winding wheels (13) engaged with each other through a gear (131), and each winding wheel (13) is coaxially coupled to a winding shaft (14), and an end of the worm spring (15) is latched to the winding wheel (13);
• the guiding element (2) has a guide wheel set installed therein, and the drawstring (62) is wound around the guide wheel set and guided to the spring box element (1), and an end of the drawstring (62) guiding to the spring box element (1) is wound around the winding shaft (14).