Tree-shaped cast steel joint with inclined lower supporting branch pipe

• Main Authors: WANG LEI, MA LIJIAN, YANG XINNING, TIAN JIANDONG, LIU ZHAOJIANG, YANG LAIYING, WANG ZIWEI
• Format: Patent
• Language: Chinese; English
• Published: 02.07.2024
• Subjects: BUILDING; CEILINGS; FIXED CONSTRUCTIONS; FLOORS; GENERAL BUILDING CONSTRUCTIONS; INSULATION OR OTHER PROTECTION OF BUILDINGS; ROOFS; WALLS, e.g. PARTITIONS

The utility model provides a tree-shaped cast steel joint with inclined lower supporting branch pipes, which can increase vertical connection, improve the bearing capacity of a key bearing structure of the tree-shaped cast steel joint and improve the positioning speed, and comprises a spherical cast steel joint, an eleventh main pipe, a fifth inclined lower supporting pipe and a seventh inclined lower supporting pipe, a spherical cavity and two expansion cavities communicated with the spherical cavity are formed in the spherical cast steel joint; the eleventh main pipe is vertically arranged under the spherical cast steel joint, the diameter of the eleventh main pipe is 400 mm, four connecting grooves with fan-shaped sections are formed in the end of the eleventh main pipe towards the spherical cast steel joint, and the connecting grooves are distributed in an annular array mode based on the axial circle center of the eleventh main pipe. The included angle between the fifth inclined lower supporting pipe and