| 摘要 |
An unburied hydraulic door hinge system for automatically closing a door is directly mounted on a bottom corner of a door. Since the unburied hydraulic hinge system can be installed on the bottom corner of the door, it does not damage the aesthetic appearance of a transparent glass door such as a reinforced glass door, and is very easy to install and repair because it is not buried. From the maintenance point of view, the worker can easily gain access thereto because the split-type mounting plates can be quickly and easily separated. A hydraulic cylinder and a rotating drive mechanism, having a simplified structure and operation, not only improve the durability and lifespan of the hydraulic hinge system but also provide the possibility of mass production as well as production cost saving. Consequently, the hydraulic door hinge system has high economical efficiency. |
