This creation discloses a flow generator structure, including a ring cover, an inner rotating cylinder, a connecting pipe body and a locking ring. The inner rotating cylinder can pass through the shaft of the ring cover, and the inner rotating cylinder can rotate freely on the shaft； the ring cover can be fixed to the bottom of the main body of the connecting pipe, and the locking ring can be locked to the main body of the connecting pipe On the external thread. Therefore, when the main body of the connecting pipe passes through the wall surface of the fish tank and is locked and fixed by a locking ring, the end of the main body of the connecting pipe can be fed into the water pipe assembly, and the inner rotating cylinder rotates on the shaft, so that it sends out a spiral rotation Water flow.本創作揭露一種造流器構造，包含環蓋、內旋轉筒、銜接管主體及鎖合環所構成。該內旋轉筒可穿置環蓋的軸桿上，而內旋轉筒則於軸桿上自由轉動；該環蓋可固定於銜接管主體底部，該鎖合環則可鎖合於銜接管主體的外螺紋上。由是，當銜接管主體穿過魚缸壁面利用鎖合環鎖合固定時，銜接管主體末端即可供入水管路組接，內旋轉筒於軸桿上轉動，進而使其送出螺旋式的旋轉水流。
