EP 4004341 A2 20220601 - DRILL HEAD FOR CREATING A BOREHOLE IN THE GROUND
Title (en)
DRILL HEAD FOR CREATING A BOREHOLE IN THE GROUND
Title (de)
BOHRKOPF FÜR DAS ERSTELLEN EINER BOHRUNG IM BODEN
Title (fr)
TÊTE DE FORAGE POUR RÉALISER UN FORAGE DANS LE SOL
Publication
Application
Priority
- DE 102019120019 A 20190724
- EP 2020070563 W 20200721
Abstract (en)
[origin: WO2021013838A2] The invention relates to a drill head for creating a substantially vertical borehole in the ground, comprising: a body, which can be connected to a rotational drive of a drilling device; drilling tools, which are arranged on the body, for loosening the ground at a working face of the borehole; a suctioning means for leading away the loosened ground at the working face, which suctioning means can be connected to a pump, wherein the suctioning means comprises an opening region arranged on the body and having at least one opening in the region of the drilling tools at the working face. It is advantageous that the opening region has an elongate extent, that the at least one opening of the opening region is connected to a suction box, which has, at an end opposite the opening, a connection opening for connecting to the pump, that, in the opening region, the ground loosened by the drilling tools can be sucked through the opening into the suction box in a flow direction by means of the pump, that the suction box is tapered in width from the opening toward the connection opening, and that the height of the suction box increases from the opening toward the connection opening.
IPC 8 full level
E21D 1/06 (2006.01); E21B 10/18 (2006.01); E21B 10/34 (2006.01); E21B 10/60 (2006.01); E21B 10/62 (2006.01); E21B 21/16 (2006.01); E21D 9/13 (2006.01)
CPC (source: CN EP KR)
E21B 10/18 (2013.01 - CN EP KR); E21B 10/34 (2013.01 - CN EP KR); E21B 10/60 (2013.01 - CN EP KR); E21B 10/62 (2013.01 - CN EP KR); E21B 21/16 (2013.01 - CN EP KR); E21D 1/06 (2013.01 - CN EP KR); E21D 9/13 (2013.01 - CN EP KR)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DE 102019120019 A1 20210128; AU 2020318699 A1 20220224; BR 112022001258 A2 20220517; CN 114402118 A 20220426; EP 4004341 A2 20220601; JP 2022541062 A 20220921; JP 7448631 B2 20240312; KR 20220046587 A 20220414; WO 2021013838 A2 20210128; WO 2021013838 A3 20210318
DOCDB simple family (application)
DE 102019120019 A 20190724; AU 2020318699 A 20200721; BR 112022001258 A 20200721; CN 202080064276 A 20200721; EP 2020070563 W 20200721; EP 20744020 A 20200721; JP 2022503928 A 20200721; KR 20227006062 A 20200721