| 摘要 |
An access cover comprising a generally non-metallic body, the body being adapted to be received in a frame to provide a closure for an access chamber; at least one locking mechanism adapted to releasably secure the body to the frame; the locking mechanism being adapted to be actuated by a tool; the locking mechanism comprising: a bolt moveable between an extended position wherein the bolt may be engaged within a recess of the frame; a retracted position wherein the bolt may be withdrawn from a recess to permit removal of the cover from the frame; and a socket adapted to receive the tool to actuate the locking mechanism and to permit lifting of the cover using the tool.
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