Engineering building material bending resistance testing mechanism

The utility model provides an engineering building material bending resistance testing mechanism which comprises a placing support, and limiting supports are installed on the left side and the right side of the upper end of the placing support through bolts. A PLC is supported on the left side of the front portion of the upper end of the placing support through bolts, and meanwhile the front end of the PLC is electrically connected with a display screen and a control switch. Hanging brackets are supported by bolts on the left and right sides of the rear part of the upper end of the placing support; a detection electric cylinder is mounted at the upper end of the lifting bracket through bolts; and a movable detection support structure is hoisted on an output shaft of the detection electric cylinder. According to the utility model, through the arrangement of the movable detection support structure, the engineering building materials which are transversely placed or longitudinally placed can be conveniently test