Laser alignment device for pumping unit

The utility model discloses a laser alignment device for a pumping unit, and belongs to the technical field of pumping units for oil exploitation. A rope hanger is connected with a rope hanger steel wire rope, an upper hanging plate is arranged on the upper portion of a connection rod, and the connection rod and the upper hanging plate are fixed to the rope hanger through fixing nuts. The lower portion of the connection rod is connected with a lower hanging plate, and a balance weight plate is installed on the upper portion of the lower hanging plate. The bottom end of the connection rod is connected with an upper connection screw through a thread, a through hole is formed in the middle of the upper connection screw, a hanging rope penetrates through the through hole, the lower portion of the hanging rope is connected through a through hole in the middle of a lower connection screw, and the lower connection screw is connected with a plumb bob through a thread. A concentric hole is formed in the plumb bob, a l