Wave-absorption device of ship model test towing tank

The utility model provides a wave-absorption device of a ship model test towing tank, comprising a connection and elevating mechanism and a float ball chain. The connection and elevating mechanism includes a left part and a right part. An elevating step motor is fixed on a tow truck body connection plate. An output shaft of the elevating step motor is connected to an elevating screw through an elevating gear box. Two ends of the elevating screw are disposed on the tow truck body connection plate through a bearing housing. A position adjusting plate is disposed on the elevating screw through a screwed hole. A connection rod is fixed on the position adjusting plate. The elevating step motor is connected to a controller. The float ball chain comprises a float ball and a connection chain. Each float ball is connected through a connection chain, forming the float ball chain. Two ends of the float ball are connected to the connection rod which is connected to the elevating mechanism. The wave-absorption device is e