Hoisting opening cover plate

The utility model belongs to the technical field of cover plate devices, and provides a hoisting opening cover plate which comprises a cover plate body and a cover plate base which are rotationally connected. The lock is arranged on the cover plate and comprises a lock body, the lock body is provided with a lock cavity, and the lock body is suitable for being connected to the cover plate; and the at least one flow guide piece is mounted on the cover plate and comprises a flow guide cavity with two open ends, and a water inlet of the flow guide cavity is communicated with the lock cavity. Accumulated water in the lock cavity can flow to the water outlet along the water inlet of the flow guide cavity, the effect that the accumulated water is discharged out of the lock cavity is achieved, the situation that rainwater is accumulated in the lock cavity can be avoided, the rainwater can be discharged in the process that water enters the lock cavity gradually, and workers do not need to conveniently discharge the ra