Nuclear power sliding air tight door

The utility model relates to a nuclear power sliding air tight door, which belongs to the technical field of nuclear power special facilities. The nuclear power sliding air tight door comprises a door frame fixed at the position of a building door opening, and is characterized in that a horizontal guide rail provided with a hung pulley is fixed above the door frame, a door leaf is hung under the hung pulley through a short connecting rod. The outer side of a door plate of the door leaf is provided with a border with an external outline larger than an internal outline of the door frame, the inner side of the door plate of the door leaf is provided with a door body which is protruded towards the direction of the door frame and has the external outline smaller than the internal outline of the door frame. The periphery of the door body is fixedly provided with sealing strips. One side of the door frame is fixedly provided with a group of positioning threaded rods with pressing hand wheels, the positioning threaded rods extend towards the direction of the door leaf, and the other side of the door frame is fixedly provided with a group of nuts. One side of the door leaf is provided with a group of horizontal guide grooves respectively corresponding to the positions of threaded rods, and the other side of the door leaf is provided with a group of locking hand wheels with the threaded rods, and the locking hand wheels are respectively corresponding to the positions of the nuts. After the nuclear power sliding air tight door is applied, the door leaf can be freely pushed-pulled and opened-closed, simultaneously the door leaf is capable of moving towards the direction of the door frame within a certain range, therefore the sealing strips can be effectively utilized to realize reliable sealing through pressing forces exerted by a locking mechanism.