Telescopic urea case

The utility model relates to an urea case field specifically indicates a telescopic urea case, include the box and install in the level sensor at box top, including filler and blow vent on the box, blow vent department install the air valve, the box be assembled box, assembled box include the main tank body, the odd -side body and connect the main tank body and the cylinder connecting piece of the odd -side body, the utility model discloses a thereby the intensity of the urea case casing that assembled urea case not only can increase but also owing to set up the volume that the transparent convex lens of bar high strength can accurate judgement need be markd has prevented the urea solution filling too much for expansion space is less than 10% and lead to the urea case bad problem that is expanded, can also carry on spacingly through the spacing recess on the urea box surface, prevent rocking of urea case, thereby the waste gas volume that in addition above all can according to actual need handles and change the handling capacity that the volume of urea case increases the urea case.