Shock-resistant HDPE (high-density polyethylene) double-wall corrugated pipe

The utility model discloses an anti-impact HDPE (high-density polyethylene) double-wall corrugated pipe, which comprises an outer corrugated pipe and an inner pipe, a buffer body is arranged in a corrugated section of the outer corrugated pipe, the buffer body comprises an annular frame and elastic balls, and the elastic balls are uniformly distributed on the annular frame; a cavity between the outer corrugated pipe and the inner pipe is filled with a sponge body, and the sponge body wraps the buffering body. The utility model has the advantages of novel structure, strong shock resistance, difficult deformation and damage, and long service life. 本实用新型公开了一种抗冲击的HDPE双壁波纹管，包括：外波纹管和内管，外波纹管的波纹段内设有缓冲体，缓冲体包括环架和弹性球体，弹性球体均匀分布在环架上；外波纹管与内管之间的空腔内填充有海绵体，海绵体包裹缓冲体。本实用新型结构新颖，抗冲击性能强，不易变形、破损，使用寿命长。