A kind of tenderizer includes a leveling mobile jib, two hinged units, two side levers and two telescopic rod units. The what leveling mobile jib both ends are respectively set in the hinged unit, respectively include two intervals and are arranged and supply pivot connecting plate, a pivotal axis and a positioning rod of one end sandwiched what of the leveling mobile jib therebetween. The grade side levers are respectively between one end sandwiched what grade pivot connecting plates and the what pivotal axis that is pivoted, can the pivotal axis be that axle center rotates between what one flattening station of leveling mobile jib what and a non-flattening station, and separatably blocks the locating slot set for the locating rod when respectively including the what flattening station. The grade telescopic rod units are separately connected the hinged units such as this and the grade side levers, have effects that element is easy merely maintenance, increases stability and service life.一種整平器，包含一整平主桿、二樞接單元、二側桿，及二伸縮桿單元。該樞接單元分別設置於該整平主桿兩端，分別包括二間隔設置並供該整平主桿之一端夾設於其間的樞接板、一樞轉軸，及一定位桿。該等側桿分別以一端夾設於該等樞接板之間並樞設於該樞轉軸，可以該樞轉軸為軸心相對於該整平主桿於一整平位置及一非整平位置間轉動，並分別包括一於該整平位置時供該定位桿可脫離地卡設的定位槽。該等伸縮桿單元分別連接該等樞接單元及該等側桿，具有元件單純容易維修、增加穩定性及使用壽命的功效。
