Outer shell for air valve

The utility model relates to the technical field of air conditioner ventilation, in particular to an outer shell for an air valve, which comprises a flange plate (1), a main body surrounding plate (2), a flange outer plate (101), a flange inner interlayer (102), an outer panel (201), a triangular support plate (202), a center plate (203) and filling cotton (204). The external shell for the air valve is used for solving the problems that a traditional external shell for the air valve only keeps the strength of an air channel, the reasonable use environment is not fully considered, the external environment affects the air temperature in the air channel, air outlet does not meet the standard, and noise generated by ventilation of the air channel affects the comfort of the external environment. The problems are solved through optimization design of the air duct shell structure, meanwhile, the purposes of improving the durability of equipment and guaranteeing the installation strength of the air duct are achieved,