Clamping form fastening

The utility model relates to an improvement of a special device for pipe fitting connection of an engineering scaffold. The improved pipe connecting device of the utility model is made of a circular pipe fitting which is manufactured, the inner diameter of the improved pipe connecting device is the same with the outer diameter of one connected pipe fitting, both ends of the pipe fitting are manufactured symmetrical L-shaped connecting positioning slots, and the middle of the pipe fitting is provided with a reinforced ferrule which is used for increasing the strength of bending resistance of the pipe connecting device. The utility model has the advantages of simple design, convenient operation, high safety, high stability and low cost, and the assembly and disassembly is fast when the utility model matches with the pipe fitting, both ends of which are provided with symmetrical buckling joints.