The invention provides a drilling bucket of
pile-driving machinery. The drilling bucket comprises a drilling top and a pressure bar, wherein, the drilling top is connected with a
drill stem of the
pile-driving machinery, a cylinder is arranged on the lower end of the drilling top, and a drilling bottom is hinged on the lower end of the cylinder; the pressure bar passes through the drilling top along the axial direction of the cylinder, the top end of the pressure bar is contacted with or separated from an unlocking pressure plate and moves along the axial direction of the cylinder, and the bottom end of the pressure bar acts on a
rocker arm mechanism; the
rocker arm mechanism is arranged on the drilling top; one end of a pulling plate
assembly is connected with the
rocker arm mechanism, and the other end of the pulling plate
assembly is connected with a lock hook
assembly of a lock hook mechanism; the lock hook assembly is hinged with the cylinder through a second hinged shaft; and the
tail end of the lock hook assembly is selectively connected with a
fastener of the drilling bottom. The drilling bucket has the advantages that as components mainly bear tension action during the process of opening the drilling bucket, the needed rigidity of the components is smaller, and the structural size of the components can be correspondingly reduced, thus improving the
volumetric efficiency of the drilling bucket, avoiding damage caused by deformation of the components under the action of compressive stress owing to insufficient rigidity, and prolonging the service life of the drilling bucket. The invention further discloses the
pile-driving machinery comprising the drilling bucket.