Reinforcing support for lower sealing head of elevator door plate and elevator door plate thereof

The utility model relates to a reinforcing support used for a lower sealing head of an elevator door plate and the elevator door plate thereof, the reinforcing support comprises a fixing plate and an insertion plate, the fixing plate is installed on the upper surface of the lower sealing head of the elevator door plate, and the fixing plate is provided with a first hole used for installing a door plate guiding device; the insertion plate is located on one side of the fixing plate and is bent downwards from the upper surface of the fixing plate. The elevator door panel comprises at least one door panel guide device; the lower sealing head is provided with first mounting holes, and the number of the first mounting holes corresponds to that of the door plate guide devices; the number of the reinforcing supports corresponds to the number of the door plate guiding devices. And each reinforcing bracket and the corresponding door plate guide device are mounted in the corresponding first mounting hole of the lower se