Portable intelligent seal cylinder

The portable intelligent seal cylinder comprises a cylinder base, an electronic part, an overturning mechanism, a seal, a sleeve limiting mechanism and an inkpad sponge mat, the cylinder base is in a cylinder shape with the two ends closed, an overturning opening is formed in the side portion of one end of the cylinder base, and the overturning mechanism for driving the seal to be overturned out of the cylinder base is arranged in the overturning opening; the overturning mechanism is fixedly connected with the seal, a sleeve limiting mechanism used for limiting and storing the seal printing face arranged in the cylinder base is arranged in the other end of the cylinder base, and an inkpad sponge pad used for supplementing printing ink for the seal is arranged between the sleeve limiting mechanism and the seal printing face. And an electronic part for controlling the turnover mechanism and the sleeve limiting mechanism to work is arranged on the sleeve seat. The seal can be in a hidden state and a use state th