Transportation safety signboard

The utility model discloses a transportation safety signboard, including support column and transportation safety signboard body, the transportation safety signboard body is located the top of support column, the right side fixedly connected with connecting block of transportation safety signboard body, the support column is by hold the pole and the dead lever is constituteed, the one end swing joint of dead lever is in the inside that holds the pole, the one end fixed connection that the transportation safety signboard body was kept away from to the connecting block is located the left side that holds the outside one end of pole at the dead lever, the spacing groove has all been offered to the both sides of dead lever. The utility model discloses a set up transmission, reached the effect that drives stopper lateral shifting, can drive the stopper and break away from the spacing groove to let the user can adjust the dead lever and stretch out the height that holds the pole, thereby adjust the height of transp