A door opening floor machine is a specialized device designed to facilitate the automatic opening and holding of heavy doors. It is typically installed beneath the floor surface near the door and is activated either manually or automatically to open the door to a preset angle, usually 90 or 180 degrees. Once opened, the machine securely holds the door in place, allowing for unobstructed passage through the doorway. This type of floor machine is commonly used in commercial and industrial settings to enhance accessibility, improve traffic flow, and provide convenience for users, particularly in areas with heavy foot traffic or where large, heavy doors are used.