Novel cord retracting-releasing apparatus

A novel cord retracting-release apparatus, comprising a conical reel set and a drive wheel set, wherein the left end of the conical reel set is connected to a curtain retracting-releasing controller by using a first pull cord, and the right end of the conical reel set is connected to the drive wheel set by using a second pull cord;

• the conical reel set comprises a first cone pulley and a second cone pulley that configured to rotate co-axially towards a same direction, one end of the first pull cord is connected to the curtain retracting-releasing controller, the other end of the first pull cord is fastened to a large-head end of the first cone pulley, one end of the second pull cord is connected to a reel in the drive wheel set, the other end of the second pull cord is fastened to a small-head end of the second cone pulley, and a winding direction of the first pull cord on the first cone pulley is opposite to a winding direction of the second pull cord on the second cone pulley;
• the conical reel set further comprises a fixed base and a rotation shaft, the rotation shaft penetrates through axis centers of the two cone pulleys, and the rotation shaft is detachably mounted on the fixed base by using an assembly member;
• and
• the middle part of the assembly member is provided with a round hole, and the rotation shaft rotates in the round hole, the assembly member comprises a first assembly member and a second assembly member, a stopper is disposed at a side of a chute of each of the two assembly members, a hook is disposed at a bottom of each of the two assembly members, after the assembly member is slid to a right position in the assembly slot, the stopper abuts against a bump in the assembly slot, and the hook is snap-fastened to a bottom of the assembly slot.