Device for measuring and positioning height in tunnel

The utility model discloses a height measuring and positioning device in a tunnel, which comprises a vehicle body, a lifting frame is arranged on the vehicle body, the lifting frame comprises a cross beam, a bull-eye universal wheel is mounted on the cross beam, a force bearing rod penetrates through the center of the bull-eye universal wheel, the top end of the force bearing rod is connected with a gradienter, and the bottom end of the force bearing rod is connected with a balancing weight. According to the utility model, the height measurement work relative to the rail surface in the tunnel construction is changed from manual work to mechanization, the measurement requirements of different heights can be met, and the device is suitable for height positioning work with large measurement quantity, such as installation of a lateral platform and a looped network bracket. According to the utility model, the gradienter can be flexibly adjusted in the longitudinal direction and the horizontal direction. The height