Three-dimensional imaging device with self-checking function

The utility model discloses a three-dimensional imaging device with a self-checking function, relates to the technical field of three-dimensional scanners, and aims to solve the problems that the conventional three-dimensional scanning imaging equipment cannot carry out self-checking on the self temperature when being used and is easy to shut down due to overheating when the environment temperature is relatively high. A cooling fan mechanism is arranged at one end of the three-dimensional imaging device main body, a filter screen is arranged on the outer side of the cooling fan mechanism, a first inner cavity is formed in the filter screen, a central rotating rod is arranged in the first inner cavity, four fan blades are arranged on the outer wall of the central rotating rod, and the fan blades are arranged in the central rotating rod. The four fan blades and the center rotating rod are integrally built, a second inner cavity is formed in the three-dimensional imaging device body, a signal input and output me