Tank-type semitrailer protection structure

The utility model relates to the technical field of vehicle protection, in particular to a tank-type semitrailer protection structure which can solve the problems that an existing tank-type semitrailer protection structure is complex and low in protection strength to a certain extent. When rear-end collision happens, an existing tank type semitrailer protection structure can collide with a tank body and main pipelines on the rear portion, large accidents such as leakage and combustion of the tank body are prone to occurring, and safety is low. The protection structure comprises a protection rod, a support assembly, a buffer component and reinforcing channel steel. Wherein the protective rod is connected with one end of the bracket assembly; the other end of the bracket assembly is connected with a tank body of the tank-type semitrailer; the buffer part is arranged between the other end of the bracket assembly and a tank body of the tank semitrailer; the support assembly comprises a first support assembly body