Grab tooth convenient to replace for grab bucket

The grabbing tooth comprises a grab bucket body, mounting grooves are formed in the lower end of the grab bucket body, mounting blocks are arranged in the mounting grooves, the mounting blocks are connected with grabbing teeth through connecting blocks, movable cavities are symmetrically formed in the grab bucket body, limiting grooves are symmetrically formed in the side walls of the mounting blocks, and the grabbing teeth are arranged in the limiting grooves. Limiting rods are slidably connected into the movable cavities, one ends of the limiting rods are slidably connected into the limiting grooves, springs are connected to the other ends of the limiting rods, movable holes are symmetrically formed in the inner wall of the grab bucket body, the movable holes communicate with the movable cavities, pull rods are fixedly connected to the surfaces of the limiting rods, and the pull rods are slidably connected into the movable holes; the connecting blocks and the grabbing teeth are installed on the grab bucket