Drill Pipe Connecting Apparatus with Positive-Locking Elements

The patent replaces electric motors and electronic control components with a purely mechanical actuation system. The locking bolts are actuated by a mechanical cam mechanism that converts rotational motion into linear displacement of the locking elements. This eliminates vulnerable electrical components from the outer periphery, replacing them with robust mechanical parts that can withstand harsh field conditions.

The patent employs a protective housing or shell that encloses the mechanical actuation components. This protective structure shields the cam mechanism and locking elements from dirt, moisture, and physical damage while allowing the mechanical actuation to function. The housing acts as a barrier against harmful environmental factors.

The patent incorporates a mechanical interlock or safety latch mechanism that prevents unintended release of the locking bolts. The design includes features such as spring-loaded locking elements that automatically engage when the drill pipe is inserted, and a mechanical barrier that prevents the locking bolts from disengaging unless a deliberate unlocking action is performed. This preliminary anti-action counteracts the potential harmful effect of accidental release.

The patent employs redundant locking mechanisms and safety features that are pre-configured to prevent catastrophic failure. Multiple locking elements are arranged such that if one fails, others remain engaged. The mechanical design includes overload protection features that prevent the locking mechanism from failing under extreme loads, thereby cushioning against the harmful effects of unintended release.

The patent extracts the vulnerable actuating rods from the outer shell and relocates the actuation mechanism to a protected position. The mechanical cam mechanism is integrated into the housing structure, with the locking elements actuated through internal mechanical linkages rather than external rods. This extraction removes the exposed components that were previously vulnerable to environmental damage.

The patent employs a nested structure where the locking mechanism is housed within the receiving device's hollow cylindrical structure. The cam mechanism and locking elements are nested within the housing, with actuation performed through the wall of the housing rather than through external rods. This nesting provides protection against dirt and damage while maintaining ease of operation.