Road bridge and tunnel connecting device with protective structure

The utility model discloses a road bridge and tunnel connecting device with a protective structure. The road bridge and tunnel connecting device comprises a connecting block, a connecting plate, a first protective shell, a second protective shell, a connecting mechanism, a reinforcing mechanism, a protective mechanism and a clamping mechanism. The connecting mechanism comprises limiting shells and positioning blocks, the two ends of the connecting plate extend into the two connecting blocks correspondingly, the limiting blocks are fixedly connected to the two sides of the connecting plate correspondingly, the surfaces of the limiting blocks are sleeved with the limiting shells, one sides of the limiting shells are fixedly connected with the inner walls of the connecting blocks, first inserting grooves are formed in one sides of the limiting blocks, first inserting rods are arranged in the first inserting grooves, and the first inserting rods are fixedly connected with the inner walls of the connecting blocks.