| 摘要 |
A protection tube structure for a subterranean line cable is provided to prevent the subterranean line cable from being damaged by using a semi-arc-like protect member enclosing the subterranean line cable from all directions. A protection tube structure for a subterranean line cable includes a flexible inner elastic tube(10), an outer protective frame(20), a protective support plate(30), and an impact protection frame(40). The flexible inner elastic tube encloses a subterranean line cable(50) and buffers an external impact. The outer protective frame is made of a hard material and protects the inner elastic tube. The protective support plate fixes an impact protective frame while elongating the outer protective frame in a length direction. When an external impact is applied, the impact protection frame absorbs the external impact. |
