Scale for rapidly measuring thickness of rice stalk

The invention provides a ruler for rapidly measuring the thickness of a rice stem. The device comprises a caliper, a shifting block and a display, the outer side of the caliper is movably clamped with the inner side of the display; the caliper comprises an inner diameter block, a caliper body, a fixed clamping plate and a movable clamping plate; the lower end of the inner diameter block is welded with the upper end of the ruler body; the upper end of the fixed clamping plate is welded with the lower end of the ruler body; the upper end of the movable clamping plate is clamped at the lower end of the display; and the inner side of the display is movably clamped with the outer side of the ruler body. When a stalk wrapped with a shell needs to be stripped, the shifting block is pushed to drive the movable clamping plate to get close to the fixed clamping plate; so that the stalk is fixed between the lower end of the movable clamping plate and the lower end of the fixed clamping plate, and then the shell is cut b