Bionic fishtail based on gear connecting rod mechanism

• Main Authors: WAN TONG, YAN ZHEPING, YANG HAOYU, WANG YANBIN, FENG SHUANG, GAO SAIBO, ZHANG WEI, GONG QINGSHUO, LIN FANTAI, GUO SHUAIKE
• Format: Patent
• Language: Chinese; English
• Published: 24.03.2020
• Subjects: MARINE PROPULSION OR STEERING; PERFORMING OPERATIONS; RELATED EQUIPMENT; SHIPS OR OTHER WATERBORNE VESSELS; TRANSPORTING

The invention discloses a bionic fishtail based on a gear connecting rod mechanism. The bionic fishtail comprises a driving part, a rod piece, a gear, a connecting piece and a hinge hole; the drivingpart comprises a waterproof motor, a worm gear and a worm; the rod piece comprises a crank, a first-stage rocker upper part, a first-stage rocker lower part, a second-stage rocker upper part, a second-stage rocker lower part, a connecting rod, a tail fin connecting piece and a tail fin; the connecting piece comprises a fish body support, a fixed rotating shaft and a movable rotating shaft; the waterproof motor is fixed on the fish body support at the tail end of the bionic fish body, the waterproof motor is connected with the worm, and the worm is matched with the worm gear; power is providedfor the whole mechanism through the waterproof motor; swing of the first-stage rocker is achieved, a relative rotation angle between the crank and the first-stage rocker is generated through a gear transmission ratio; relative