1, according to the load is divided into three grades: special light grade (q), intermediate, special heavy Grade (Z). In each load grade, there are four kinds of structural types including axial sliding, bidirectional sliding, guide sliding, and double direction sliding.
2. According to the material of bracket, it can be divided into steel structure, reinforced concrete structure and brick frame.
3, by use can be divided into the movable bracket (allow the pipe on the stent with the displacement of the bracket) and the fixed bracket (fixed on the pipe bracket). A fixed bracket is used in places where the pipe is not allowed to have axial displacement, as shown in the figure.
The movable bracket is divided into sliding bracket, guide bracket and rolling bracket.