Tightener for power line construction

A wire tightener for power line construction comprises a shell, a transverse clamping plate is arranged at the top end of the shell, a through groove is formed in the clamping plate, two rolling wheels are arranged in the through groove, a rotating roller is arranged in the middle of the shell, a first hand wheel is connected to the left end of the rotating roller, and a ratchet wheel is connectedto the right end of the rotating roller. The first hand wheel, the rotating roller and the ratchet wheel are all connected and fixed to the shell through a driving shaft of the motor, a sleeve A anda sleeve B which are connected in a sleeved mode are arranged at the bottom of the shell, a spring is arranged between the sleeve A and the sleeve B, one end of the sleeve B extends out of the sleeveA and is connected with a universal shaft, and a hook is arranged at the bottom end of the universal shaft. 一种电力线路施工用紧线器，包括壳体，壳体顶端设有横向的夹板，夹板中设有通槽，通槽中设有两个滚轮，壳体中部设有旋转辊，旋转辊左端连接有第一手轮，旋转辊右端连接有棘轮，棘轮右部设有电机，所第一手轮、旋转辊及棘轮均通过电机的驱动轴连接并固定在壳