Floodgate, Floodgate frame, and Conduit to which the floodgate frame is added

摘要

The subject innovation is the case it is difficult to foreign structures for door frames as about surogwan structure, which is installed the water gate and door frames and water gate kkigi, which hump stuck foreign substances, even hayeoseo gets swept away by the water flow have a trapezoidal shape open so as to maintain always clean .; And water gate is to enable a smooth operation at all times to have a structure consistent with the structure of the door frame, when receiving the pressure hayeoseo provided with a roller that is not corrosive material contacts the door frame change the sliding friction to rolling friction zoom.; In addition, the subject innovation is an object of this the door frame structure providing a pre-molded surogwan like.