Novel air tightness detection platform for tractor gearbox

The utility model discloses a novel air tightness detection platform for a tractor gearbox, which comprises a water tank frame, and a supporting seat is arranged at the bottom in the water tank frame; a supporting bottom plate is welded to the bottom of the water tank frame. Toughened glass windows are respectively arranged on the peripheral wall of the water tank frame, and are adhered to the water tank frame in a sealing manner; a dirt baffle matched with the water tank frame in inner diameter is flatly laid in the water tank frame, convection holes are formed in the dirt baffle, and the bottom face of the dirt baffle is flatly placed at the bottom in the water tank frame through supporting legs. An opening is formed in the dirt baffle; and a lifting base is arranged below the water tank frame. According to the utility model, the height is increased, the toughened glass window is beneficial to observation, bending down is not needed, the observation angle is increased, and no dead angle exists basically. Th