Bionic jellyfish robot

The invention discloses a bionic jellyfish robot which comprises a head cover, at least two swimming plates evenly hinged to the circumference of the head cover, an upper guide rail mechanism, a lower guide rail mechanism, an upper movable connecting plate, a lower movable connecting plate, an outer upper push rod, an outer lower push rod and a sealing cavity shell. One end of the outer upper push rod is hinged to the upper movable connecting plate, the other end of the outer upper push rod is hinged to the middle of the outer lower push rod, the upper end and the lower end of the sealing cavity shell are arranged on the upper guide rail mechanism and the lower guide rail mechanism in a sealed mode respectively, and a mobile power source, a controller and a stepping motor are arranged in the middle of the interior of the sealing cavity shell. One end of the inner upper push rod and one end of the inner lower push rod are hinged to the upper movable connecting plate and the lower movable connecting plate respe