FIELD: construction.
SUBSTANCE: inspection well manhole, including a cover joined with a body, and made as a whole with a ring provided at the side of the body with height of (0.10±0.05) of the cover diameter and the external diameter making (0.70±0.05) of the cover diameter.
EFFECT: simplified design and high extent of safety due to prevention of spontaneous manhole cover opening whenever a pedestrian walks over or a vehicle passes by, elimination of vehicle chassis breakdown and reduced probability of unauthorised cover removal.
3 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| INSPECTION CHAMBER HATCH | 2007 |
|
RU2361040C1 |
| INSPECTION PIT ACCESS HATCH | 1998 |
|
RU2140490C1 |
| FLOATING MANHOLE HATCH | 2005 |
|
RU2283922C1 |
| INSPECTION WELL HATCH | 2006 |
|
RU2307213C1 |
| WELL HATCH WITH HEIGHT AND TILT ADJUSTABLE DURING OPERATION | 2012 |
|
RU2504619C1 |
| METHOD FOR INSPECTION WELL HATCH MANUFACTURING | 2006 |
|
RU2307214C1 |
| MANHOLE HATCH FRAME OF VARIABLE HEIGHT | 2023 |
|
RU2820790C1 |
| INSPECTION MAN-HOLE | 1997 |
|
RU2133796C1 |
| INSPECTION WELL MANHOLE | 2005 |
|
RU2340730C2 |
| INSPECTION WELL MANHOLE | 2009 |
|
RU2403343C1 |
