1. The interior of the deformed fireproof door with fireproof hinge is filled with fireproof material, usually perlite, which has good heat insulation and flame retardant performance, and its weight is heavy, thus increasing the quality of the door body. Henan fireproof doors are fixed by hinges as a whole. Due to the heavy quality of the door body, After a long time, the hinge can't bear the pressure and may bend. At this time, the gap between the door leaf and the door frame may become larger, and the door leaf is not vertical up and down. In serious cases
The fire door cannot be closed normally. In this way, if the bending of the hinge is not serious, remove it and chisel it with a hammer. If the bending is too serious to repair, the better way is to change a new hinge!
2. The wooden fire door cannot be closed normally due to the incorrect door frame. Because we usually open and close the door, the nails and screws used to fix the door frame will inevitably show some looseness. This is because the gap between the door frame and the wall will become larger and the distance from the door leaf will become shorter, It can not be closed normally or it is not closed tightly. In this case, find a hammer to fasten the nail, and then use a screwdriver to tighten the screw.
3. After the installation of the fire door with excessive or small force and loophole, the application frequency is increasing, and the seasonal temperature changes. It is necessary to stop regulating the force and speed of the fire door closer. The fire door will feel unable to close or not tightly closed when the force is too small. Excessive force can cause door collision, which often leads to door loosening, Therefore, we should stop conditioning the door closer in time. Through the two screws on the side of the door closer, different products have different operating instructions. Some door closers leak oil in summer. Due to the excessive force of positioning the door closers, ordinary consumers can't repair the door closers themselves, so they have to stop changing the door closers.
