Positioning auxiliary device for municipal engineering

The utility model belongs to the technical field of municipal engineering, and particularly relates to an auxiliary positioning device for municipal engineering, which comprises a first main body, a second main body, a third main body and a fourth main body, the supporting bearing is movably connected with the connecting groove, and a drill bit hole is formed in the supporting bearing and used for being connected with a drill bit; the positioning assembly comprises a suction cup and a telescopic piece, one end of the telescopic piece is connected with the suction cup, and the other end is connected with the first connecting end; wherein a threaded hole is formed in the first connecting end and used for being connected with the positioning assembly, the positioning assembly is used for positioning a drill bit of an electric drill, and then the situation that in the drilling process, the drill bit is separated from the drilling position due to vibration is prevented. 本实用新型属于市政工程技术领域，尤其涉及一种市政工程用定位辅助装置，包括：主体一，主体一