| 摘要 |
An access cover for connecting to a rainwater pipe (10, 11) or the like comprises an outer tubular section (1) and an inner tubular section (2) nested at least partially within the outer tubular section. An access aperture (3) is provided in the inner tubular section such that in use, the rainwater pipe can be inspected and a rod can be inserted into the rainwater pipe for cleaning. The access aperture is covered by the outer tubular section and relative movement is permitted between the inner and outer tubular sections such that in use, the access aperture may be covered and uncovered easily. In one embodiment the outer tubular section contains a second access aperture corresponding to the first access aperture; in this case rotary motion between the inner and outer tubular sections is possible. In another embodiment the outer tubular section is arranged to slide over the access aperture in a direction substantially parallel to the axis of the tubular sections. |
