Clamp grab bucket and loader

According to the technical scheme, the clamp grab bucket is characterized in that the clamp grab bucket comprises a connecting beam, a cross beam is connected to the lower portion of the connecting beam through a rotating assembly, positioning seats are symmetrically welded to the outer surface of the bottom of the cross beam, and rotating blocks are rotationally connected to the inner sides of the positioning seats; an adjusting plate is welded to the surface of the outer side of the rotating block, a transmission assembly is arranged between the upper surface of the adjusting plate and the outer surface of the top of the cross beam, a fixing plate is connected to the bottom end of the adjusting plate, an inserting groove is formed in the surface of the bottom end of the adjusting plate, and an inserting block is integrally formed in the top of the fixing plate; the inserting block is inserted into the inserting groove, a fixing rod is arranged on the inserting block in a penetrating mode, and the other end