Vehicle-mounted refrigerator door body locking mechanism

The utility model discloses a vehicle-mounted refrigerator door body box locking mechanism which comprises a box door, a box body is arranged below the box door, a lock cylinder installation base is installed inside the box door, a lock cylinder is arranged on the lock cylinder installation base, a lock cylinder groove is formed in the right end of the bottom face of the box door in a penetrating mode, and the lock cylinder is located in the lock cylinder groove. A clamping plate is fixedly arranged on the inner top face of the box door, an empty groove is formed in the right side of the clamping plate, the empty groove is formed in the box door, the lock cylinder is formed by combining a connecting ring, a first lock rod and a second lock rod, a hinge shaft is installed on the lock cylinder installation base, the connecting ring is arranged on the hinge shaft in a sleeving mode and rotationally connected with the hinge shaft, and a limiting assembly is arranged between the first lock rod and the clamping pla