Dual-purpose drill rod fisher
A dual-purpose drill rod fisher comprises a dual-purpose fisher connector, wherein the dual-purpose fisher connector is connected with a guide cover; the guide cover is funnel-shaped, and the internal diameter of the guide cover is matched with the external diameter of a drill rod; and the guide cov...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | A dual-purpose drill rod fisher comprises a dual-purpose fisher connector, wherein the dual-purpose fisher connector is connected with a guide cover; the guide cover is funnel-shaped, and the internal diameter of the guide cover is matched with the external diameter of a drill rod; and the guide cover has a fence structure encircled by at least 6 steel bars. After adoption of the technical scheme, the dual-purpose drill rod fisher is simple in structure, can fish up a fallen drill rod conveniently and improves the working efficiency. |
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