Protective device of pavement material strength tester

The utility model discloses a protective device of a pavement material strength tester, which comprises a cabinet body, a protective mechanism is arranged above a transverse plate, the protective mechanism comprises a sliding block, two sliding chutes, a spring and a second protective cylinder, the two sliding chutes are processed above the transverse plate, the sliding block is clamped in the sliding chutes in a sliding manner, and the second protective cylinder is clamped in the sliding chutes. The outer sides of the sliding blocks are fixedly connected with the inner sides of the sliding grooves through springs, the tops of the sliding blocks are fixedly connected with second pile casings, and the inner sides of the two second pile casings are attached to each other. The utility model relates to the technical field of pavement material strength testers, and discloses a pavement material strength tester which adopts a first protective cylinder and a second protective cylinder to protect a test process throu