High-sealing wear-resistant ship gate valve

The utility model relates to the technical field of sluice valves, in particular to a high-sealing wear-resistant sluice valve for ships, which comprises a sluice valve body, first flanges are fixedly connected to two sides of the sluice valve body, and second flanges are movably contacted to two sides of the first flanges. A sealing ring is moved into a corresponding annular groove, then a second flange is held to move rightwards so that a flange can be arranged on the outer sides of an L-shaped block and a round rod in a sliding and sleeving mode, the L-shaped block drives an arc-shaped block to extrude a ball, and the ball drives a transverse plate to move through a vertical block to extrude a spring; the elastic force of the spring drives the vertical block to move to the position between the limiting block and the arc-shaped block, so that the sealing ring is fixed, fixation through bolts is avoided, connection between the first flange and the second flange cannot be loosened, the sealing performance is