A drilling wall sealing device
The modular design of the borehole wall sealing device solves the problem of frequent drill bit replacement during drilling of different sizes, thereby improving construction efficiency and economy.
CN224282587UActive Publication Date: 2026-05-26ZHEJIANG ROAD & BRIDGE CONSTR +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG ROAD & BRIDGE CONSTR
- Filing Date
- 2025-07-11
- Publication Date
- 2026-05-26
AI Technical Summary
Technical Problem
Existing cement ball wall sealing technology requires replacing the entire drill bit when dealing with holes of different sizes, resulting in low construction efficiency.
Method used
Design a modular, assembled borehole wall sealing device, including a scraper body and detachable combined blades. The variable diameter combination of the drill bit is realized through the reserved slot and central shaft hole. The drill bit self-cleaning is realized by combining water passage holes and flushing holes, which can adapt to the construction needs of boreholes of different sizes.
Benefits of technology
It improves construction efficiency, reduces on-site workload, is more economical, and shortens processing time through modular design.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224282587U_ABST
Abstract
This application relates to a borehole wall sealing and plugging device, comprising a scraper body extending along a first direction, one end of which is used to connect to a drill rod, and the other end of which is provided with a reserved slot extending along the first direction; and multiple combined blades, which are detachably connected to the scraper body; each combined blade has a connecting end and a working end, the connecting end being disposed within the scraper body, and the working end extending outward through the reserved slot, the reserved slot cooperating with the combined blade to position the combined blade; the working radii of the working ends of the multiple combined blades are different. This utility model designs the drill bit as an assembled modular structure, allowing for simple on-site assembly, shortening processing time, reducing on-site workload, and allowing for the replacement of the combined blades according to the borehole size during use. Compared with a general one-piece molded scraper, it is more economical and has higher work efficiency.
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