Patent ID: 11952768
Assignee: NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 3:
4. The fabricated concrete connection structure according to claim 3, wherein the second sliding part comprises a second sliding ring (17), a ring-shaped plate (45) being sleeved outside the second sliding ring (17), the ring-shaped plate (45) being positioned at a middle portion of the second sliding ring (17), and the second sliding ring (17) being fixedly connected to the ring-shaped plate (45); and
third springs (23) being arranged on one side of the ring-shaped plate (45), and two ends of each of the third springs (23) abutting against one end of the third sleeve pipe (20) and one side of the ring-shaped plate (45); an outer wall of the second sliding ring (17) being slidably connected to the inner wall of the third sleeve pipe (20); and an outer wall of the ring-shaped plate (45) being slidably connected to an inner wall of the first sliding ring (16).