Mine support handheld anchor rod angle correcting device and use method thereof

The invention belongs to the field of the mine support technology, tunnel engineering and underground space engineering, and particularly relates to a mine support handheld anchor rod angle correcting device and a use method thereof. The device is composed of a rigid fastening body, a rectangular slideway, a rigid supporting plate and a 360-degree protractor; the rigid fastening body is a hollow cylinder with an opening in the side face, the dimension of the hollow cylinder is matched with that of a roof bolter, a main fastening screw is arranged at one side of the opening, and the 360-degree protractor is welded to the rigid fastening body. One end of the rectangular slideway is connected with the rigid fastening body, the other end of the rectangular slidway is connected with a rigid supporting plate, a rectangular sliding sheet is arranged on the rectangular slideway, the position of the rectangular sliding sheet is fixed through a fastening bolt, and the rectangular slideway is connected with the rigid fa