Patent ID: 7377331

Claim:
A damping drive axle, comprising: an output shaft divided into a first portion and a second portion; a mounting seat being a hollow column and having a centrally defined hole, the centrally defined hole including a first compartment to correspond to and receive therein the first portion of the output shaft and a second compartment in communication with the first compartment to receive therein the second portion of the output shaft; a locking device that includes a hollow cylinder with two open ends, and having a sleeve rotatably received in the hollow cylinder, a triangle opening to allow an extension of the second portion of the output shaft, multiple columns rotatably received in a side defining the triangle opening to selectively lock/release the second portion of the output shaft, multiple cutouts defined in a bottom face of the cylinder and multiple legs extending out from the bottom face of the cylinder, each leg being sandwiched by two adjacent cutouts; and an input device to rotate the sleeve of the locking device.