A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a self-locking anti-drop sewer cover. The self-locking anti-drop sewer cover comprises a sewer cover and a sewer cover base, wherein the sewer is arranged on the sewer cover base. The self-locking anti-drop sewer cover is characterized in that the sewer cover base is rotatably connected with latch hooks, grooves used for containing the latch hooks are formed in the surface of the sewer cover, the bottoms of the grooves are provided with wedge-shaped protrusions, and the hook-shaped end of each latch hook is connected with the corresponding wedge-shaped protrusion in a hook mode; the numbers of the wedge-shaped protrusions and the latch hooks are both two. The self-locking anti-drop sewer cover has the advantages that the sewer cover anti-drop effect is good, the sewer cover is not prone to be pushed away by the water under the sewer cover, and the sewer cover can improve the security of a road surface when water logging happens.
The invention discloses a self-locking anti-drop sewer cover. The self-locking anti-drop sewer cover comprises a sewer cover and a sewer cover base, wherein the sewer is arranged on the sewer cover base. The self-locking anti-drop sewer cover is characterized in that the sewer cover base is rotatably connected with latch hooks, grooves used for containing the latch hooks are formed in the surface of the sewer cover, the bottoms of the grooves are provided with wedge-shaped protrusions, and the hook-shaped end of each latch hook is connected with the corresponding wedge-shaped protrusion in a hook mode; the numbers of the wedge-shaped protrusions and the latch hooks are both two. The self-locking anti-drop sewer cover has the advantages that the sewer cover anti-drop effect is good, the sewer cover is not prone to be pushed away by the water under the sewer cover, and the sewer cover can improve the security of a road surface when water logging happens.
Steel structure connection anti-drop self-locking assembly
| European Patent Office | 2024