A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a backward-flowing well lid which comprises a well base and a well lid body. A ring-shaped post is arranged at the lower end of the well lid body. A cylindrical block is arranged under the ring-shaped post, a ring is arranged on the outer side of the cylindrical block, and the outer circular face of the ring is matched with the inner circular face of the well base through threads. A plurality of connecting strips are arranged between the inner circular face of the ring and the outer circular face of the cylindrical block and evenly distributed along the cylindrical block. Sliding grooves are formed in the connecting strips. Connecting rods are arranged on the connecting strips. Each connecting strip is connected with one end of the corresponding connecting rod through a bolt, each bolt is matched with the corresponding sliding groove, and the other end of each connecting rod is rotatably connected with the ring-shaped post. A rotating rod is fixedly arranged on the ring-shaped post and penetrates through the well lid body. The sliding grooves are formed in the connecting strips. The backward-flowing well lid is effectively prevented from being stolen.
The invention discloses a backward-flowing well lid which comprises a well base and a well lid body. A ring-shaped post is arranged at the lower end of the well lid body. A cylindrical block is arranged under the ring-shaped post, a ring is arranged on the outer side of the cylindrical block, and the outer circular face of the ring is matched with the inner circular face of the well base through threads. A plurality of connecting strips are arranged between the inner circular face of the ring and the outer circular face of the cylindrical block and evenly distributed along the cylindrical block. Sliding grooves are formed in the connecting strips. Connecting rods are arranged on the connecting strips. Each connecting strip is connected with one end of the corresponding connecting rod through a bolt, each bolt is matched with the corresponding sliding groove, and the other end of each connecting rod is rotatably connected with the ring-shaped post. A rotating rod is fixedly arranged on the ring-shaped post and penetrates through the well lid body. The sliding grooves are formed in the connecting strips. The backward-flowing well lid is effectively prevented from being stolen.
Backward-flowing well lid
PENG GUOBIN (author)
2016-01-20
Patent
Electronic Resource
English
IPC:
E02D
FOUNDATIONS
,
Gründungen
Integrated intelligent sewage intercepting well capable of preventing river backward flowing
| European Patent Office | 2020