Outdoor low-voltage dual-power distribution box lock

The utility model discloses an outdoor low-voltage dual-power distribution box lock which comprises a lock body, a square water retaining ring is fixedly installed at the bottom end of the lock body, a square cavity is formed in the top end of the square water retaining ring and penetrates through the bottom end of the square water retaining ring, a sealing mechanism is movably inserted into the square cavity and comprises an insertion plate, and the insertion plate is movably inserted into the square cavity. Sliding grooves are formed in the two opposite inner cavity walls of the square cavity, an inserting groove is formed in one inner cavity wall of the square cavity, an inserting hole penetrating through the outer wall of the square water retaining ring is formed in the other inner cavity wall of the square cavity, and the end edge of the inserting plate penetrates through the inserting hole, extends into the square cavity and is finally inserted into the inserting groove. According to the outdoor low-vol