Stair chain group

The utility model discloses a stair chain group contains 1 the 1st stair chain and 1 the 2nd stair chain, a stair chain and the 2nd stair chain are parallel to each other, are connected through many step poles between a stair chain and the 2nd stair chain, and the step span length is equal, the both ends and the stair chain pivot of step pole are connected through the pin within a definite time, and the both ends of step pole still respectively are equipped with a clamp and tightly turn round the piece, press from both sides tightly to turn round the piece and pin to be equipped with a nylon cover within a definite time. The utility model discloses a stair chain group is become by two stair chain group, is connected through many step poles between these two stair chain, and this chain group pulls as a whole or is accomplished by two chain combined action driven the time like this to job stabilization nature is greatly improved. 本实用新型公开了种梯级链条组，包含第梯级链条和第二梯级链条，所述第梯级链条和第二梯级链条相互平行，第梯级链条和第二梯级链条间通过多根梯级杆相连接，梯级杆间距离相等，