Experimental box

The utility model provides an experimental box, the power distribution box comprises a box body, handle and thrust unit, the handle sets up in the upside of box, thrust unit, thrust unit includes rolling device and push rod, rolling device wheel components and fixed block, wheel components sets up in the lower extreme of fixed block, the fixed block sets up in the downside of box, can dismantle with the box by fixing device and be connected, the push rod sets up in one side of rolling device, fixing device is including the chamber that holds of setting and fixed block top, hold to be providedwith on the inside wall in chamber and hold the groove, it is provided with the fixture block to hold the inslot, be provided with the elastic component between the bottom side in fixture block and appearance groove, it is provided with the control lever to hold the inslot, the one end and the fixture block looks butt of control lever, the other end sets up in the outside of fixed block, the weekside of box set up in with