Anti-shaking ship ballast tank channel grating cover

The utility model discloses an anti-shake ship ballast tank channel grating cover in the field of ship ballast tank channels, which comprises a ship body, a vertical channel is vertically arranged on the ship body, two mounting seats in bilateral symmetry are arranged on one side, corresponding to the vertical channel, of the ship body, and the two mounting seats are connected with a swingable grating cover. The grating cover comprises a rectangular outer frame, the outer frame is composed of four outer rod bodies which form a rectangle in an enclosing mode, a plurality of parallel blocking rods are arranged in the outer frame, two annular fixing seats which are symmetrical left and right are arranged on the other side, corresponding to the vertical channel, of the ship body, notches are formed in the upper portions of the fixing seats, clamping grooves are formed in the fixing seats, and the clamping grooves are communicated with the blocking rods. Inclined guide plates are arranged at the two ends of the fi