Compact structure for sealing door

The utility model provides a compact structure for sealing door, characterized by: include that a plurality of spirals compress tightly the piece, distribute in each edge of sealing door, the bolt compresses tightly an upper portion for the hexagon head, and the hexagon head lower part be outer cylinder and little cylinder, hexagon head, outer cylinder, pillar face coaxial line, and it has the helicoid to process between little cylinder and the outer cylinder, and the helicoid rises to the ascending middle part of column jacket over glaze on the bottom beginning spiral of cylinder from childhood, at column jacket shape of face one -tenth tangent plane of starting point cut off of helicoid rising, the tangent plane is parallel with the axis of outer cylinder, still be equipped with one section bottom cylinder in the below of little cylinder, the terminal surface of bottom cylinder is the bottom surface, hole and hexagon head coaxial line, the hole is the screw thread through -hole, the spiral compresses tightly the bottom cylinder clearance of piece and installs on the box, the hole that compresses tightly with the spiral on the box is corresponding is provided with the screw hole, still including being used for the spiral to compress tightly the hole of piece and the threaded hole's on the wrong income box bolt. It compresses tightly reliably, is difficult to become invalid.