The utility model relates to the technical field of constructional
engineering construction fences, in particular to a convenient-to-disassemble protective fence for constructional
engineering construction, which comprises a support rod, the device further comprises a mounting
assembly, the number of the supporting rods is only two, the mounting
assembly is arranged between the two supporting rods, and the mounting
assembly comprises a mounting groove, a mounting rod, a bottom rod, a matching groove, a positioning hole, a matching plate, a positioning rod, a positioning cone, a
handle, a rubber pad, a fixing block and a rubber disc. By arranging the mounting assembly, the mounting rod and the low rod are inserted into the mounting groove, then the positioning rod is inserted into the positioning hole, the matching plate is matched with the matching groove by pulling the
handle, the matching plate is conveniently beaten by the rubber pad, and the positioning cone is quickly inserted into the soil, so that positioning is performed; and the fixing block drives the matching plate to ascend, so that the positioning cone is rapidly pulled out of the soil, the effect of rapid disassembly and assembly is achieved, and the working efficiency is improved.