Translation actuating arm of push -and -pull translation window

The utility model provides a translation actuating arm of push -and -pull translation window, includes the swing arm, the transfer line connecting hole is seted up to swing arm one end, and swing arm other end installation hinge axle, the hinge axle is connected with the one end of slave arm, and the slave arm is around the rotatory extension that realizes between slave arm and the swing arm in the axle center of hinge axle or folding, slave arm other end installation gyro wheel, the gyro wheel is connected through pivot and slave arm, sets up the limiting plate on one side of the swing arm, and the slave arm is during with swing arm one -tenth extension state, and slave arm and limiting plate contact. Can not cause the skew closed position of casement during to the translation of drive casement, when promoting the casement translation, and take place relative displacement between the window frame hardly, heavy wear can not appear, the noise etc. That rubs can not appear when closing the window.