| 摘要 |
PURPOSE: A trench cover with a locking device is provided to prevent the installed trench cover from becoming separated from a mounting frame. CONSTITUTION: A trench cover with a locking device comprises a body(10), supports(11), connectors, steel frames(15), and wedge assemblies(20). The body is formed in a box shape and has multiple holes(10a). The supports are formed on both surfaces of the body. The connectors are formed in the front and rear of the body to connect the body to the adjacent body. The steel frames are insert-injected inside the body. The wedge assemblies are inserted into fixture grooves(22) formed in both sides of the body in a T-shape.
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