Reinforcing steel bar sample frame suitable for sample AGV transportation and automatic detection

The utility model discloses a reinforcing steel bar sample rack suitable for AGV transportation and automatic detection of samples, the reinforcing steel bar sample rack comprises a mounting rack and four locking assemblies, the four locking assemblies are arranged at the bottom end of the mounting rack, and each locking assembly comprises a supporting column, a vertical sliding block, a first spring, a horizontal sliding block, a second spring and a U-shaped plate; the horizontal sliding block is in an L shape, the upper end of the horizontal sliding block is fixedly connected with the U-shaped plate, sliding strips are arranged on the two sides of the U-shaped plate, sliding grooves are formed in the bottom end of the mounting frame and matched with the sliding strips, the lower end of the horizontal sliding block horizontally penetrates through the supporting column, a penetrating hole is formed in the lower end of the horizontal sliding block, and the side wall of the horizontal sliding block is connected