The invention discloses a rainproof pad comprises a pad made of elastic manhole, flexible material, the central plate is provided with a through hole circular, fan-shaped or rectangular plate, the outer ring and the through hole of the same shape, hole shape and the size of the shape and size of the manhole wall cross section of the same size, shape and size is greater than the outer plate the manhole wall cross section. By adopting the technical scheme, the manhole ring and the manhole cover surface of the lower surface of the base plate and the inner edge is laid between the manhole wall, inner ring plate is consistent, the outer edge of the plate and between the laying of roadbed and road surface, the elastic sealing plate can effectively block the rain water on the road no longer along the fracture and the manhole wall outside and the gap between the road surface infiltration, avoid manhole around soil compaction by long-term immersion of rain may lose, the grass always maintain good firmness and bearing capacity, better keep the road smooth, but also to protect the manhole and prolong its service life.
【技术实现步骤摘要】
【技术保护点】
窨井用防渗止水垫，其特征在于：包括由弹柔性材料制成的垫板，垫板中央开设有圆形、扇形或矩形的通孔，垫板的外圈和通孔的形状相同，通孔的形状大小与窨井内壁横截面的形状大小相同，垫板外圈的形状大小大于窨井外壁横截面的形状大小。
【技术特征摘要】
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