FIELD: soil or rock drilling.
SUBSTANCE: group of inventions relates to a drill head containing a multifunctional connector. Said multifunctional connector connects a functional drilling element with a drilling head, in particular with a sliding cylinder of a drilling head. Said connector includes a first connecting element with a first socket adapted to accommodate a connecting section of a first functional drilling element therein, the second connecting element located near the said first connecting element in the direction of the longitudinal axis of the multifunctional connector, with a second socket adapted to accommodate a connecting portion of a second functional drilling element therein, a fixing element located between said first and second connecting elements, with a hole of the fixing element for passing the connecting section of the second functional drilling element through it. Above first socket comprises at least two moving surfaces for transmitting torque in the first direction to at least two corresponding contact surfaces at the connecting portion of the first functional drilling element. Above second socket contains at least two moving surfaces for transmitting torque in the first direction and in the second, opposite direction, at least two corresponding contact surfaces at the connecting portion of the second functional drilling element in the position of drilling and / or retracting the second functional drilling element. Further, the locking element contains at least one locking section to prevent movement of the connecting section of the second functional drilling element in a direction parallel to the longitudinal axis, relative to the second coupling element in the position of withdrawal of the second functional drilling element.
EFFECT: increased safety and ease of movement.
15 cl, 13 dwg
