What is a glass door spring?
Ground spring is a kind of hydraulic door closer. Its device of pressing spring is worm gear instead of gear rack. The worm wheel can rotate forward and backward. It can be used for two-way open doors, while the door closer can only be used for one-way open doors. The key technology of the ground spring is the bearing seat at the lower part of the spindle, which determines the bearing grade of the ground spring. Because the floor spring used for bidirectional opening bears the weight of the door body, compared with the door closer, the weight of the door body plays a decisive role in the selection of the floor spring. In practical application, the weight of the door will not exceed, so the choice of door width and wind pressure on the ground spring model is the preferred factor. Also pay attention to the aspect ratio, that is, the ratio of height and width, if too disproportionate, the door can not be used normally.