The clamp-type scaffold, also known as the disc-type scaffold (defined as plug-in type in domestic specifications), is not of the same type as the wheel-type scaffold. It is quite incorrect that many people in China confuse the clamp-type scaffold with the wheel-type scaffold. The clamp-type scaffold technology originated in Germany and is a mainstream product in Europe and America. China began to introduce the clamp-type scaffold in the early 20th century, and currently, more construction projects in China are adopting the clamp-type scaffold.

The climbing frame is mainly composed of vertical rods, horizontal rods, and inclined rods, with various rod components integrated with connecting accessories. The connection clamps on the horizontal and inclined rods are fixed to the connection plate of the vertical rod with pins. The connection plate of the vertical rod has 8 holes, 4 small holes for the horizontal rods, and 4 large holes for the inclined rods, evenly distributed. The connection clamps for the horizontal and inclined rods are designed according to the curvature of the 48mm steel pipe, providing a full surface contact with the vertical rod steel pipe. After tightening the pins, it forms a three-point load (the two points at the top and bottom of the joint and the pin on the disc), which can firmly secure the structure and transfer horizontal forces. The horizontal rod clamps, disc, and steel pipe are fully welded for a secure fit, ensuring accurate air force transmission. The inclined rod clamps are designed to be rotatable and are fixed to the steel pipe with rivets. The connection method between vertical rods is primarily through outer or inner sleeve connection pipes, with one end welded to the vertical rod and the other end fixed with a pin.