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一种防冲孔堵塞装置
周青春; 李海波; 王晓炜; 李俊如
2018-02-02
Rights Holder中国科学院武汉岩土力学研究所
Date Available2018-02-02
CountryCN
Subtype实用新型
Abstract本实用新型公开了一种防冲孔的堵塞装置,橡胶圈固定在上承压板和下承压板之间,上承压板、下承压板通过环氧树脂胶粘在橡胶圈上,橡胶圈通过中间圆孔与连接杆的过盈配合固定在连接杆上,导向杆通过固定螺母与连接杆相连,垫板穿过导向杆放置在钻孔的孔口。限位件为三片式结构,通过橡皮箍将限位件连接为整体,限位件四周为方向朝上的齿状结构。限位件撑开前,其上端中心为标准圆孔,直径略大于导向杆外径,限位件内部空腔锥角与锥形栓塞锥角相同。限位件撑开后与钻孔孔壁接触时,其外径与钻孔直径相等。结构简单,使用方便,通过钻孔内的压力使橡胶圈产生的变形对钻孔进行封堵,又通过钻孔内介质的高压使限位件张开形成闭锁,防止出现冲孔的事故。
Patent NumberCN206957627U
Application NumberCN201720744660.X
IPC Classification NumberE21B33/03
Document Type专利
Identifierhttp://119.78.100.198/handle/2S6PX9GI/14246
Collection岩土力学所知识全产出_专利
岩土力学所知识全产出
Recommended Citation
GB/T 7714
周青春,李海波,王晓炜,等. 一种防冲孔堵塞装置. CN206957627U[P]. 2018-02-02.
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