Flatness measuring instrument with high measuring precision

• Main Authors: XU YAXING, ZHOU HAIQIANG, ZHAI SHILIN, CAI WEN, YANG FENG
• Format: Patent
• Language: Chinese; English
• Published: 25.04.2023
• Subjects: CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, ORTHE LIKE; FIXED CONSTRUCTIONS; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR

The utility model relates to the technical field of building measuring equipment, and discloses a flatness measuring instrument with high measuring precision, which comprises two bottom plates, the top ends of the two bottom plates are fixedly connected with fixed sleeves, the fixed sleeves are internally provided with movable grooves, and the left and right side walls of the movable grooves are provided with guide grooves. A limiting block is slidably connected to the inner wall of the guide groove, a threaded rod is rotatably connected to the inner bottom wall of the movable groove, a first bevel gear is fixedly connected to the outer bottom end of the threaded rod, a damping shaft is rotatably connected to a through hole in the outer bottom end of the fixed sleeve, and the end, close to the first bevel gear, of the damping shaft extends into the movable groove. According to the utility model, the height of the universal wheel can be finely adjusted, and the influence on the measurement precision caused by