Brick clamp used during truck loading of brickyard or transferring of bricks

The invention provides a brick clamp used during truck loading of a brickyard or transferring of bricks, and belongs to the field of machinery. The brick clamp comprises a rotary support frame, a carriage width adjusting main slider, brick clamp moving sliders, single brick clamps, integral large brick clamps, single brick clamp springs, a driving brick clamp oil cylinder and a brick clamp rack body. The rotary support frame is mounted on the brick clamp rack body, and the two brick clamp moving sliders are symmetrically mounted on two sides of the brick clamp rack body. The carriage width adjusting main slider is mounted between the two brick clamp moving sliders, four moving sliders which are connected with the single brick clamps and the integral large brick clamps are symmetrically mounted on the inner side walls of the two brick clamp moving sliders, the single brick clamps are connected with the brick clamp moving sliders through brick clamp connectors, and the brick clamp connectors are provided with b