The upper and lower door shafts must be on a vertical line. The glass door must be made of steel beams. The upper shaft must be welded to the beam. Because the upper door shaft is the support point of the entire glass door, it must be firm. It is forbidden to use the upper beam. The wooden keel structure of the wooden board, because the connection point between the upper door shaft and the wood making structure can only be fixedly connected by using a self-tapping screw. Due to the large number of opening times, the time of the door is easy to fall off, which is dangerous.

When the ground spring is embedded, a rectangular square pit shall be cut on the original ground, and the circumference shall be larger than 10 mm of the ground spring base. It is used for plugging high-grade cement mortar to play a firm role. It is recommended that the spring cement be solidified after 48 hours. Door, the glass door should be installed 8-12 mm from the ground to prevent the glass door from rubbing against the ground when it hangs down.

The upper and lower door shafts of the ground door should be seated in the center of the door frame, so that the glass door can be seated in the center of the door frame after installation, which has an aesthetic effect. Install the glass door to the side of the beam 3-6 mm from the beam, prevent the door from the door and the door clip connection when the door is drooped. There is also a detail to pay attention to, the door shaft and the door clip should be filled with butter, which can reduce The connector is worn to extend its life.