The utility model relates to the field of
laser deflection instrument discloses a new
laser deflection instrument, including
laser dynamic deflection car main part, a plurality of working wheels are installed to the laser dynamic deflection car main part outside, the laser dynamic deflection car main part outside is installed with the
optical fiber gyro main part, the laser dynamic deflection car main part outside is provided with cleaning
assembly, the laser dynamic deflection car main part top is provided with detection
assembly, the cleaning
assembly includes the protective shell, the protective shell outside fixedly connected in the laser dynamic deflection car main part top, the protective shell inner wall is fixedly connected with motor. In the utility model, the rotating shaft is driven by motor to drive the
rotating disc to rotate, makes L type rod reciprocating sliding in the limiting block through the connecting piece, axle, and the spring in the shell keeps the
brush plate in contact with the
road surface, realizes the sustained cleaning to the measured ground, avoids the sundries interference
laser light path, ensures the accuracy of deflection detection data and the continuous
work ability of equipment.