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公开(公告)号：US20220010681A1
公开(公告)日：2022-01-13
申请号：US17167363
申请日：2021-02-04
发明人： Songfeng Guo , Shengwen Qi , Shishu Zhang , Xingdong Ma , Guoqing Yuan , Xiuhua Wang , Bowen Zheng , Yu Zou , Xiaolin Huang , Ning Liang , Hang Li , Yubo Liu , Jianxian He , Xianglong Yao , Daping Tai , Guangming Luo
IPC分类号： E21D21/00
摘要： The present invention discloses a type of energy-absorbing rock bolt device with umbrella-shaped structure, which consists of a body of bolt, and one end of the said body of bolt is equipped with a preloaded system, as well as the other end of the said body of bolt is equipped with the first support system, in addition, the said body of bolt is equipped with several second support systems, and the said second support system is located between the said preloaded system and the said first support system; meanwhile, the said second support system consists of the first umbrella-shaped support system and the second umbrella support system.
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公开(公告)号：US11268383B2
公开(公告)日：2022-03-08
申请号：US17167363
申请日：2021-02-04
发明人： Songfeng Guo , Shengwen Qi , Shishu Zhang , Xingdong Ma , Guoqing Yuan , Xiuhua Wang , Bowen Zheng , Yu Zou , Xiaolin Huang , Ning Liang , Hang Li , Yubo Liu , Jianxian He , Xianglong Yao , Daping Tai , Guangming Luo
IPC分类号： E21D21/00
摘要： The present invention discloses a type of energy-absorbing rock bolt device with umbrella-shaped structure, which consists of a body of bolt, and one end of the said body of bolt is equipped with a preloaded system, as well as the other end of the said body of bolt is equipped with the first support system, in addition, the said body of bolt is equipped with several second support systems, and the said second support system is located between the said preloaded system and the said first support system; meanwhile, the said second support system consists of the first umbrella-shaped support system and the second umbrella support system.
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