发明名称 |
Connector and rod lock for a drilling rod |
摘要 |
The connection has a plug (5) provided on an end of one of two pipe sections and comprising one of a helical guide protrusion (6) or a guide groove (7). A connecting bushing is arranged on an end of the other pipe section and comprises one of a guide groove or a helical guide protrusion meshing with the helical guide protrusion or guide groove of the plug. The guide protrusions and the guide grooves comprise radially oriented contact surfaces (10). A cylindrical bearing surface (19) receives a bearing ring. An independent claim is also included for a pipe section for a drill pipe. |
申请公布号 |
EP2487321(A2) |
申请公布日期 |
2012.08.15 |
申请号 |
EP20120000706 |
申请日期 |
2012.02.02 |
申请人 |
TRACTO-TECHNIK GMBH & CO. KG |
发明人 |
FISCHER, SEBASTIAN;GROBBEL, RAIMUND |
分类号 |
E21B7/00;E21B17/02;E21B17/04;E21B17/046;E21B17/18;E21B21/12 |
主分类号 |
E21B7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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