Self-elevating platform submersible pump cable locking and releasing device

The utility model discloses a self-elevating platform submersible pump cable locking and releasing device, and relates to the technical field of ship and ocean engineering, a platform main structure is supported on a pile leg, and the locking and releasing device comprises a pile leg fixing part and a platform fixing part; the pile leg fixing part comprises a base fixed to a pile leg, a main gear is arranged on one side face of the base, an auxiliary gear is arranged on the other side face of the base, and the main gear and the auxiliary gear are connected through a gear shaft penetrating through the base. The auxiliary gear is meshed with a horizontal locking rack, the end of the locking rack is connected to a sliding locking block used for fixing one side of the cable, and a fixed locking block used for fixing the other side of the cable is further fixed to the base. A bidirectional pawl for controlling the rotating direction of the main gear is also hinged to the base; the platform fixing part comprises a