Cantilever type intelligent heat-preservation closed ventilation opening for grain depot

The utility model discloses a grain depot cantilever type intelligent heat preservation closed ventilation opening, which overcomes the problem that the opening angle of an existing ventilation opening cover body (102) is small, and comprises a ventilation opening mechanical part (1), a grain depot extension (2), a main control computer (3) and a grain condition acquisition device (4), the ventilation opening mechanical part (1) is installed on a wall body of a granary through a rear baffle on a ventilation opening main body in the ventilation opening mechanical part (1) and bolts, the granary extension set (2) is installed in a distribution box on the outer wall of the granary, and a temperature sensor network in the grain condition collecting device (4) is buried in a grain pile according to a certain rule to monitor the real-time temperature of each position of the grain pile. The grain condition acquisition device (4) is in wireless connection with the main control computer (3); the main control computer