JPH0242758Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of a road floor plate with a manhole provided across adjacent floor plates.

Generally, when a manhole is installed across adjacent floor plates, a single cover plate is placed on top of it, but the left and right receiving grooves of large reinforced concrete road floor plates laid adjacent to waterways, etc. If there is even a slight difference in level between the manholes, there is a risk that the manhole will wobble when passed over, leading to various inconveniences.

This project was devised for the purpose of obtaining a road floor board with manholes that does not have the above-mentioned drawbacks, and its structure is explained with reference to the drawings. Figure 1 is a plan view of the road floor board with manholes of this invention, and Figure 2 is a Figure 1 is a sectional view taken along the line A-A, Figures 3 and 4 are a plan view and side view of the reinforced concrete cover plate used in this project, and Figures 5 and 6 are a plan view and side view of the iron lattice cover plate. It is.

In the drawings, reference numerals 1 and 2 indicate reinforced concrete floor plates laid adjacent to each other, and manholes 3 and 4 having receiving grooves 7 and 8 on their peripheries are provided across both floor plates.

Reference numerals 5 and 6 are reinforced concrete cover plates that close each side 3 and 4 of the manhole, with each side a facing the side of the adjacent cover plate, and the remaining three sides b, c, and d closing each side 3 or 4 of the manhole.
It is engaged and supported on the receiving groove 7 or 8 of.

Reference numeral 9 denotes an iron lattice cover plate having the same outer diameter as the reinforced concrete cover plate 5, and is designed to close each side 3 and 4 of the manhole in the same manner as the cover plate 5.

As mentioned above, in the proposed road floor plate, each of the two cover plates 5, 6 or 9, 9 is supported by separate manholes 3, 4 on both sides, so that even if there is a step between the left and right floor plates, the left and right Three sides of the lid plate have receiving grooves 7 and 8, respectively.
Because it closely engages with the two cover plates, there is no rattling or noise when vehicles run on both cover plates, and there is no problem with unstable floor plates, which are often found in conventional manhole cover plates. When a heavy vehicle runs onto one side, it can also prevent the danger of the other side being thrown up and escaping from the receiving groove.

[Brief explanation of the drawing]

Figure 1 is a plan view of the proposed road floor plate with manholes, Figure 2 is a sectional view taken along the line A-A in Figure 1, and Figures 3 and 4 are a plan view and side view of the reinforced concrete cover plate used in this proposal. , 5 and 6 are a plan view and a side view of the iron lattice cover plate. 1, 2: Floorboard, 3, 4: Left and right sides of manhole,
5, 6: Concrete cover plate, 7, 8: Receiving groove,
9: Iron grate lid plate.

Claims (1)

[Claims for Utility Model Registration] 1. For a road with a manhole, in which left and right cover plates are supported adjacent to each other on each side of the manhole on each peripheral receiving groove of a manhole provided across adjacent left and right floorboards. floorboards. 2. A road floor plate with a manhole according to claim 1 of the utility model registration claim, which uses a reinforced concrete plate as a cover plate. 3. A road floor board with a manhole according to claim 1 of the utility model registration claim, which uses an iron lattice board as a cover board.