Locking structure and dish washing machine

The invention provides a locking structure and a dish-washing machine. The locking structure comprises a first movable part and a second movable part, a locking distance is reserved between the second movable piece and the first movable piece; and the locking piece structure is arranged in the locking interval, the locking piece structure comprises a locking piece, the second movable piece is provided with a through hole which just passes through the locking piece, and the locking piece has a first state which is over against the through hole and a second state which is staggered with the through hole. The first movable piece and the second movable piece move relative to the locking piece structure, the second movable piece firstly reaches the position of the locking piece structure, and due to the fact that the through hole is formed in the second movable piece and the locking piece is in the first state, the second movable piece can pass through the locking piece structure. The above movement continues, the