Locking device for manhole comprises frame and panel locked to it by locking mechanism controlling bolt which engages strike plate

摘要

The locking device comprises a frame (1) and a panel (2) able to be locked on the frame by means of a locking mechanism (5) controlling a bolt (51) able to engage a strike plate (41). The panel has a housing (20) which receives the locking mechanism. The strike plate is carried by a rod (410) integral with the frame and projecting into the housing through a drilling (31) in the housing botom (200).