Assembly type adjustable heavy goods shelf

The utility model discloses an assembly type adjustable heavy goods shelf which comprises a punching vertical support, a punching cross arm, a connecting block, a bottom plate, a middle plate, a clamping plate, a spring, a lock shaft, a telescopic spring, a self-locking block, a lock hole, a lock catch, a locking part, a rotating part, a locking groove, a connecting part, a bending part, a connecting hole, a through hole, a mounting hole, a clamping opening and a rubber gasket. The punching device has the advantages that the connecting part of the connecting block is fixed with different mounting holes of the punching vertical support, so that the distance between the punching cross arms is adjusted, the use space of the punching device can be divided according to requirements, the connecting end of the lock shaft is sleeved with the telescopic spring, and the punching device is convenient to use. The self-locking block of the lock shaft penetrates through the lock hole of the lock catch to reach the rotating