A convenient-to-use new energy vehicle device comprises a frame and legs. The frame comprises a middle frame. Sliding slots extending front and back and with outward inlets are arranged in the middleframe oppositely left and the right. A central rotating cavity positioned at the left and right center is arranged at the front end of the middle frame. A first chain wheel is rotatably installed in the central rotating cavity through a steering shaft. The front ends of the sliding slots are provided with side rotating cavities. Conveying troughs which communicate with each other are arranged between the side rotating cavities and the central rotating cavity. A front slider and a rear slider are installed in each sliding slot in a way of translating front and back, a front screw and a rear screw are installed in the front slider and the rear slider in a matching way, the front screw and the rear screw are fixedly connected, and a second chain wheel is installed in each side rotating cavityand is connected with the front screw. Chains are installed on the first chain wheel and the second chain wheels. Front connection bars extending forwards are fixedly arranged on the outer side endsof the front sliders. Rear connection bars extending rearwards are fixedly arranged on the outer side ends of the rear sliders.