Opening and closing control door that is easy to install and does not need hinge

摘要

The present invention relates to an opening/closing control door in which construction is easy and a hinge is not required. The opening/closing control door uses a hydraulic hinge allowing the door to be automatically closed after the door is opened, thereby enabling the door to be opened and closed without the hinge used for opening and closing the existing door. The opening/closing control door further comprises first and second fixing parts fastened to each other in a door frame so that the hydraulic hinge is easily installed, thereby being easily installed and constructed. Therefore, the opening/closing control door can be easily maintained and repaired.