Level gauge

The utility model relates to the technical field of level gauges, and discloses a level gauge which comprises a level gauge body and a mounting base, and the mounting base is arranged at the bottom of the level gauge body; a lifting assembly is mounted on the level gauge and comprises a supporting outer rod, a supporting sleeve, a worm gear, a screw rod, a plate body, a worm and a handle; by arranging the supporting outer rod, the supporting sleeve, the worm gear, the screw rod, the plate body, the worm and the handle, when height adjustment needs to be conducted, an operator rotates the handle clockwise, the handle rotates to drive the worm to start to rotate with the worm gear, the worm gear rotates to drive the supporting sleeve to rotate synchronously, and therefore one end of the screw rod is driven to start to move upwards slowly; and when the leveling instrument body and the mounting base are moved to a proper height, the operator stops shaking the handle, so that the leveling instrument is simple and