T/CIPR 009-2022

Main technical content: The setting of arc-shaped protrusions and arc-shaped recesses is designed to enable effective assembly and use, as well as the addition of other supporting objects between adjacent arc-shaped boards. These supporting objects can be similar to arc-shaped boards or other flat items. This not only enhances the stability of the support but also achieves a smooth transition of the arc angle. The number of locking teeth is set to 18, 36, or 72. The purpose of this setting is to effectively limit the angle, which can be rotated by 20 degrees, 10 degrees, or 5 degrees, making it easy to adjust for use. The guide rod and arc-shaped board are detachably connected by a threaded connection, and the connecting rod and sleeve are detachably connected by a threaded connection. The purpose of this setting is to facilitate transportation. When needed, it can be assembled according to actual requirements. The setting of the positioning ring groove, locking ring groove, and positioning bead can effectively ensure the stability of its rotation and installation, which is conducive to the operation of workers during construction.