Civil engineering protection fence convenient and rapid to install

The utility model relates to the field of civil engineering fences, in particular to a civil engineering protective fence convenient and fast to install, which comprises a main enclosure plate, T-shaped movable grooves are symmetrically formed in the surface of the main enclosure plate, locking plates are slidably connected in the T-shaped movable grooves, adjusting rods are fixedly connected to the surfaces of the locking plates, and the adjusting rods are fixedly connected to the surfaces of the locking plates. And the surface of the adjusting rod is movably sleeved with a limiting plate. Two fences are placed on the same horizontal line, an adjusting rod on a main enclosure plate is pulled to drive a locking plate to move and be inserted into a rectangular locking groove formed in an auxiliary enclosure plate, a limiting plate movably connected to the adjusting rod is inserted into a corresponding limiting hole, then the locking plate is limited, and rapid splicing is achieved; in the fence mounting proces