Installation device of pre-stressed anchor rod and operation arm of anchor rod trolley

The utility model discloses an installation device of a pre-stressed anchor rod and an operation arm of an anchor rod trolley, the installation device of the pre-stressed anchor rod comprises a rod body with external threads and a fastening nut sleeved on the rod body in a penetrating mode, and the installation device of the pre-stressed anchor rod comprises a nut locking assembly and a rod body tensioning assembly. The nut locking assembly comprises a locking element and a first power mechanism, wherein the locking element is used for being connected with the fastening nut and provided with a rotating axis, the first power mechanism drives the locking element to rotate so as to lock the fastening nut, and the locking element is provided with a connecting part connected with the fastening nut in a sleeving mode. The rod body tensioning assembly comprises a tensioning element and a second power mechanism, the tensioning element penetrates into the locking element along the rotating axis and is used for being c