| 摘要 |
PURPOSE: A drain grating for construction is provided to allow free passage by overcoming a height difference between the parking surface of a building and the sidewalk. CONSTITUTION: A drain grating for construction is composed as follows. Inclined grooves(52,54) are formed on the bottom part of a triangle bearing bar(50). A gibs(60,70) whose top surface is inclined are sliding-coupled to the respective inclined grooves. A welding washer(72) is installed in the gibs. Bolts(64,74) are coupled into tap holes(56,58) formed on the bottom of the triangle bearing bar. Wrench holes(42,44) whose center is matched with bolt head portions(64a,74a) is formed in the uppermost triangle bearing bar. A cross bar(80) in which a round portion(82) is formed on the top thereof is installed to cross the bottom of the triangle bearing bar. A non-slip groove(59) of a semicircular shape is formed on the top of the triangle bearing bar. A hard expanded band(85) is to attached to the rear upper side of a rear plate(40b). |
