Punching-free assembly type steel structure protective shed

The utility model relates to the technical field of steel structure devices, and discloses a punching-free assembly type steel structure protective shed which comprises four stand columns, T-shaped grooves are formed in the tops of the four stand columns, second inserting blocks are movably inserted into the four T-shaped grooves, a connecting block is jointly inserted into the tops of the four second inserting blocks in a sliding mode, and the top of the connecting block is fixedly connected with the bottom of the stand columns. Two first inserting blocks are slidably inserted into the two sides of one connecting block, two second inserting columns are fixedly connected to one side of each first inserting block, and through sliding inserting connection of the stand columns and the connecting blocks, sliding inserting connection of the connecting blocks and the shed roof, and sliding inserting connection cooperation of the second inserting columns and the first inserting blocks, the whole protective shed can