Automatic catch tail gliding style yawl winding and unwinding devices and double slide system

The utility model discloses an automatic catch tail gliding style yawl winding and unwinding devices and double slide system is applicable to the hull that the afterbody has V type groove, wherein, include: slideway device, slideway device install at V type inslot, guider, the one end that V type groove is close to the surface of water is equipped with guider, draw gear, draw gear install on V type groove, draw gear and V type groove sliding connections, the automatic couple device of catching, the automatic couple device of catching is installed on draw gear, power control unit, power controlunit controls draw gear. The utility model discloses the automatic seizure and the couple when receiving the ship, catch the position the hull inside (apart from tail sealing board distance account for slope length 3/5ths), furthest has avoided the most dangerous tail sealing board position. The utility model discloses catching successfully the back by pulling the bracket automatic drag to depositing the position, portab