Pneumatic joint filling device

The utility model discloses a pneumatic caulking device, including the moving mechanism and install the sizing material barrel and the filling mechanism on the moving mechanism, the moving mechanism includes the bottom plate, the bottom wheel is rotatingly connected to the left and right sides of the front and back sides of the bottom plate, and the middle of the right side of the top of the bottom plate is fixedly connected with the rotating seat. The utility model relates to the technical field of building construction. According to the pneumatic joint filling device, the filling mechanism is rotationally arranged on the bottom plate of the moving mechanism, rubber bands are arranged on the two sides for traction, when a crack is bent slightly, the whole device does not need to be pushed to steer together, the filling mechanism can rotate to adapt to the track of the crack, the operation difficulty is lowered, and the working efficiency is greatly improved; and the rollers are arranged to be matched with th