Plastic coaming box with separation function

The utility model discloses a plastic coaming box with a separating function, which comprises a plastic coaming box body and a box cover, a plurality of outer cover plates are fixedly mounted on the inner wall of the plastic coaming box body, racks are movably inserted into the outer cover plates, movable teeth are movably connected to one sides of the inner parts of the outer cover plates, sliding grooves are formed in the inner wall of the plastic coaming box body, and the sliding grooves are communicated with the outer cover plates. A main partition vertical plate is slidably clamped to one side of the sliding groove, a secondary partition vertical plate is slidably clamped to the other side of the sliding groove, clamping grooves are formed in the two sides of the outer portion of the main partition vertical plate and the two sides of the outer portion of the secondary partition vertical plate, inserting plates are inserted into the clamping grooves, and main partition transverse plates are fixedly instal